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,y. r--. MET REVIEW122 :-5~ LET SPECIALIST
PPACTICE TEST - I
MULTIPLE CHOICE
1. The process of expelling product of metabolism in cellsA. Digestion C.RespirationB. Excretion D.Circulation
2. Accessory organ of digestion for storing bileA. Pancreas C.Gall bladderB. Spleen D.Liver
3. Genetic Engineering process which involves combining cells wsimilar characteristics and closely related
A. Gene cloning.C. Protoplast FusionB. Karyotyping D. Hybridoma
4. According to her father, Sophia would be a bright student becaiof having a wider forehead. What could be inferred from this be
of the father?A. The cerebrum is the largest partof the brain
associated with thoughtsB. The cerebellum is the seat of intelligenceC. Hypothalamus is associated with emotionsD. The cerebrum coordinates the function of all parts
5. The most important cause of gradual diminishing of.
biodiversity isA. Global warmingB. Ozone layer depletionC. Rapid consumption of plants & animalsD. Habitat destruction
-.Y.-I"'" MET REVIEW1Z2 :~'j;.,JLET SPECIALIST
PPACTICE TEST -I
MULTIPLE CHOICE
1. The process of expelling product of metabolism in cellsA. Digestion C.RespirationB. Excretion D. Circulation
2. Accessory organ of digestion for storing bileA. Pancreas C. Gall bladder
B. Spleen D. Liver
3. Genetic Engineering process which involves co. bining cells with
similar characteristics and closely relateA. Gene cloning C. Protoplast Fusiop
B. Karyotyping D. Hybridoma
4. According to her father, Sophia would be a bright student becauseof having a wider forehead. What could be inferred from this belief
of the father?A. The cerebr~m is the largest partof the brain
associated with thoughtsB. The cerebellum is the seat of intelligenceC. Hypothalamus is associated with emotionsD. The cerebrum coordinates the function of all parts
5. The most important cause of gradual diminishing of.
biodiversity isA. Global warmingB. Ozone layer depletioC. Rapid consump ion of plants & animals
D. Habitat destruction
-:;'Y:-' LET SPECIALIST ILJ
6. Cross of Rr x Rr will produce offspring with a phenotypic ratio ofA. 4:0 C.1:3B.3:1 D.1:2:1
7. What harmful gasesr-e-leased from burning of fossil fuels causeacid rain?
A. Ozone and Carbon dioxideB. Hydrogen and OxygenCooSulfur Dioxide and NitrogenD. Carbon dioxide and lead
8. Brain part associated with thinking and reasoningA. Cerebrum C. Medulla OblongataB. Cerebeilum D. Hypothalamus
9. Gaseous compound commonly used to hasten the ripening of fruitsA. Methane C. Carbon dioxideB. Ethylene D. Arnmon!a
10. Which of the following are good sources of proteins?A. bread, corn, and potatoB. pepper, garlic, and tomatoC. milk, eggs, and beansD. papaya, eggplant, and arnpalava
11. Abiotic component that can affect living thing in an ecosystemA. bacteria C. animalsB. food D. temperature
12. Incomplete metamorphosis is a characteristic ofA. moth C. skipperB. butterfly D. grasshopper
--- ---~ ~ ----
«. ,:-0. MET REVIEW124 ~J;!kJLET SPECIALIST
13. Rain formation (Hydrologic cycle) processess include the
following:A. Evaporation and sublimationB. Evaporation and condensationC.Transpiration and evaporationD. Condensation and transpiration
14. New Technique which can tell a predisposition to heart attachthrough chemical indicator in the genetic material
A. LinkageB. Gene-splicing technologyC.Gene CloningD. DNA typing
15. Typen of cell which all animals are made ofA. Haploid C.HybridB.Prokaryotic D. Eukaryotic
16. Cashew's freshly part is a part of a flower calledA. Ovule C.ReceptacleB: Ovary D. Peducle
17. Lipasespeeds up the digestion ofA. CarbohydratesB. VitaminsC.FatsD. Proteir.s
18. Because of having undefined, bacteria and bluegreen algae were
considered as-----A. Caryotic C.Prokaryotic.B.Eucaryotic D.Archaic
,w:, ;:.. MET REVIEW124 ~J;:!~~LET SPECIALIST
13.
14.
15.
16.
17.
18.
Rain formation (Hydrologic cycle) processess include the
following:A. Evaporation and sublimationB. Evaporation and condensationC. Transpiration and evaporation
D. Condensation and transpiration
New Technique which can tell a predisposition to heart attach
through chemical indicator in the genetic materialA. LinkageB. Gene-splicing technologyC. Gene Cloning
D. DNA typing
Typen of cell which all animals are made ofA. Haploid C. HybridB. Prok.aryotic D. Eukaryotic
Cashew's freshly part is a part of a flower calledA. Ovule C. Receptacle
B: Ovary D. Peducle
Lipase speeds up the digestion ofA. Carbohydrates
B. VitaminsC. FatsD. Proteir.s
Because of having undefined, bacteria and bluegreen algae were
considered as-----A. CaryoticB. Eucaryotic
C. Prokaryotic
D. Archaic
19. Insulin is a hormone secreted byA. Adrenal Cortex C.Pituitary glandB.Adrenal Medulla D. Islets of langerhans
20. A technique in determining the age of a fossil using radioactiveisotopes
A. counting the number of layers of sedimentary rock. B. Fossil indexingC.RadiometricdatingD. Observing using a powerful microscope
21. In seed germination, the structures that come out first from thetesta which grows into the first true leaves and roots are
A. Micropyle and hypocotylB. Plumule and radicleC.DicotyledonsD.Testa and tegmen
22. Involuntary muscles which form the walls of blood vessels andintestines are classified as
ft.. Cardiac C.StriatedB.Smooth D. Non-striated
23. Exchangingof materials between the blood and the cells happen inA. Arterioles c. CapillariesB.Arteries D. Veins
24. What do you call the long and narrow tube which forms one of themouth parts of a mosquito?
A. Proboscis C.SuckersB. Mandible D.Antennae
IfCJ~"MET REVIEW123 '->:kJl£T SPECIALIST
25. What do you call the ring of muscle found at the boundary betweenthe stomach and the small intestines?
A. Septum C SphincterB. Rectum D.Columnar muscle
26. Paired hair-like structures found in eachsegment ofthe earthwormwhich function for locomotion
A. (iliaC. FlagellaB. Setae D. Pseudopodia
27. A condition in which the air sacs of the lungs are damaged andeniarged, causing breathlessness
A. Pulmonary crisis C.EmphysemaB. Bronchitis D. Bronchial irritation
2S. It is not advisable to drink water from the sea becauseA. it can cause plasmolysis of the cellsB'.it is toxic to the cellsC. it will make the eel! burstD. it can cause crenation of the celis
29. Biodegradation process of converting waste organic materials intohumus.
A. Fermentation C.ShreddingB.Composting D. Recycling
30. In Carbon cycle, the origin of oxygen is _A. plantsB. animals
C.decomposersD. air
31. It is difficult to use soap with water from the sea becauseA. seawater is poor solventB. seawater does not lather with hard waterC.seawater is saturated with gasesD. seawater is dirty
32. Which are the functions of the rods and cones of the eyes?A. Rodsand cones react to dark visionB. Rods react to dark vision, cones to colorsC.Rodsdetect light, rods to colorsD. Cones resP.Qn~dto light, rods for focusing
33. Animals that produce young by means of eggs which are hatchedafter they have been laid by the parent, as in birds.
A. Oviparous C.ViviparousB.Ovoviviparous D.Marsupials
34. The involuntary constriction and relaxation of the muscles of theintestine, producing wave-like movements which push the contentsof the canal forward.
A. invaginattonB. peristalsisC.cyclosisD.muscle contraction
35. Which is an effective way of controlling population explosion?A. Vasectomy C.Useof condom and pillsB. Hysterectomy D.population education
36. Which Of the following must be present in an ecosystem in order tomaintain life in it?
'A.Producers, carnivores, decomposersB. Producers, herbivores, decomposersC.Carnivores, decomposers, herbivoresD. Herbivores, decomposers, heterotrophs
37. Which of the following are characteristics of cardiac musclesA. Non-striated and voluntaryB. Non-striated and involuntaryC.Striated and voluntaryD.Striated and involuntary
\~\'..,.,MET REVIEW1L£ '-SkJ LET SPECIALIST
25. What do you call the ring of muscle found at the boundary betweenthe stomach and the small intestines?
A. Septum C SphincterB. Rectum D, Columnar muscle
26. Paired hair-like structures found in eachsegment of the earthwormwhich function for locomotion
A. Cilia C. FlagellaB. Setae D. Pseudopodia
27. A condition in which the air sacs of the lungs are damaged andeniarged, causing breathlessness
A. Pulmonary crisis C.EmphysemaB. Bronchitis D. Bronchial irritation
2S. It is not advisable to drink water from the sea becauseA. it can cause plasmolysis of the cellsB',it is toxic to the cellsC. it will make the eel! burstD. it can cause crenation of the celis
29. Biodegradation process of converting waste organic materials intohumus.
A. Fermer'lt8tion C.ShreddingB. Composting D. Recycling
30. In Carbon cycle, the origin of oxygen is _A. plantsB. animals
C.decomposersD.air
31. It is difficult to use soap with water from the sea becauseA. seawater is poor solventB. seawater does not lather with hard waterC.seawater is saturated with gasesD. seawater is dirty
32. Which are the functions of the rods and cones of the eyes?A. Rods and cones react to dark visionB. Rods react to dark vision, con-s to colorsC. Rods detect light, rods to colorsD. Cones respond to light, rods for focusing
33. Animals that produce young by means of eggs which are hatchedafter they have been laid by the parent, as in birds.
A. Oviparous C. ViviparousB. Ovoviviparous D. Marsupials
34. The involuntary constriction and relaxation of the muscles of the'intestine, producing wave-like movements which push the contentsof the canal forward.
A. invaginationB. peristalsisC. cyclosisD. muscle contraction
35. Which is an effective way of controlling population explosion?A. Vasectomy C. Use of condom and pillsB. Hysterectomy D. population education
36. Which Of the following must be present in an ecosystem in order tomaintain life in it?
'A. Producers, carnivores, decomposersB. Producers, herbivores, decomposersC. Carnivores, decomposers, herbivoresD. Herbivores, decomposers, heterotrophs
37. Which of the following are characteristics of cardiac musclesA. Non-striated and voluntaryB. Non-striated and involuntaryC. Striated and voluntaryD. Striated and involuntary
"'..!~MET REVIEW128 ~;~ lET SPECIALIST
38. An enzyme, found chiefly in saliva and pancreatic fluid, that converts
starch and glycogen into simple sugars.A. amylase C. pepsin
B. glycogenase D. lipase
39. Which activity can seriously destroy ecological balance?
A. burning of fossil fuelsB. dumping garbage into the river
C. clearing of forestsD. use of aerosols containing chemicals that
cause ozone depletion
40. Which is the normal average red blood cell count in a healthy adults
A. 4~5 million in males; 3.8 million in femalesB. 3.8 million in females; 7.S million in malesC. 5.0 million in females; 8.8 million in malesD. 5,4 million in males; 4.8 million in females
41. He proposed the theory that acquired characteristics can be
inheritedA. Charles Darwin
B. James CrickC. Gregor Mendel
D. Jean Lamarck
42. Type of asexual reproduction in plantsA. Sporulation C. Binary fission
B. Vegetative propagation D. Pollination
43. Another term for platelet wtl'ieh involves in the clotting of bloodA. Erythrocytes C. LeococytesB.Thrombocytes D. Macrophages
rii'"t MET REVIew~.K' lET SPECIALIST 129
44. The parenchyma (inner tissue) of a leaf, Containing manychloroplasts
A. Palisade mesophy/l C. Apical MeristemB. Spongy meristem D. Dermis
~
45. Squamous epith eliaIcelisa re common Iy fo und lin Ing the followingorgans. A. kidney and ducts
B. heart and blood vesselsC. sweat glandsD. mouth and skin
46. Eagle is the predator while rat is it's------A. foe
B. parasite C. preyD. host
47. Theterm which describes the relationships that exist among climate,plants and animals in a particuiar geographical region
A. Biome C. NicheB. Biosphere D. Habitat
48. Deficiency of this mineral may result in arm and leg musclesspasms,osteoporosis; depression, and high blood pressure
A. Calciurr. C. SodiumB. Magnesium D. Potassium
49. The butterfly's pupa stage is also called asA. Adult C. Nymph8. Chrysalis D. larvae
50. A structure found in large numbers in most cells, in whichrespiration and energy production occur.
A. MitochondriaB. ChloroplastC. CytoplasmD. Golgi bodies
,.r.,.J~MET REVIEW1:l) '-5J<l LET SPECIALIST
51. Nucleus containing two complete sets of chromosomes,
one from each parent.A. Haploid C. PolyploidB. Diploid D. Triploid
52. What is the main source of all energy in the ecosystem?A. Producer C.WindB.Sun D. Atmosphere
53. It describes an organism with neither a distinct nucleuswith a membrane nor other specialized structures
A. Prokaryotic C. MulticellularB.Eucaryotic D. Non-cellular
54. It is the largest intestinal roundworm and is the most commonhelminth infection of humans worldwide
A. Fluke C.Ascar:sB.Flat worm D. Pin worm
55. The "ribo" part in Deoxyribonucleic Acid (DNA) corresponds tothe _
A. nitrogenous partB.Hydrogen bondsC.SugarcomponentD.Amino group
56. Inorganic wastes like plastics which take years to decompose are
described as---A. Non-biodegradable C.RecyclableB. Biodegradable D. Renewable
~57. Plant macro-nutrient which plays an important function in protein
synthesisA. Nitrogen c. PhosphorusB.potassium D. Sulfur
->j<..- Ll: j SPECIALIST 1-.) I
58. 'Which compounds can form acid rain with water vapor in theatmosphere
A,H25&NO C.°3&CO
B. 502 & N02 D.NH3
& CO2
59. Owners of motor vehicles are encouraged to use this in order toreduce air pollution?
A. Fuel filter c. High Octane gasoline-8.Unleaded gasoline D.Safe motor oil
60. Which of the following is considered as the most dangerous airpollut2nts.
A. Solid particulates C.SmogB.Airborne fungal spores D.Asbestos particles
61. Plants that live only in one growing season as in the caseof rice andcorn are classified <:IS
A. Annuals C. BiennialsB.Seasonals D. Perennials
62. Main reason why most marine animals live near shallow waters isbecause
A. they feel better in the presence of the sunB.they can breath more comfortably thereC.they are more safer there from their predatorD.green plants live there
63. Kind of pollution which a nuclear power plant may produce to a. body of water which can result to the abnormal growth of livingorganisms in the water
A. RadiationB.Thermal pollutionC.Air pollutionD. Eutrophication
-
64. Stem part of a dicot plant responsible for the formation of annual
ringsA. BarkB.Cambium layer
C. PithD.Heart
65. Which factor may result to a reduction in over all population size?A. Birth c. ImmigrationB. Emigration D. Presence of infectious diseases
66. Which can result to increase in town's human population?A. Emigration and natalityB. Emigration and mortalityC. Immigration and natalityD.lmmigration and mortality
67. Animal that feeds on a variety of food of both plant and
animal origin.A. Carnivore C.OmnivoreB. Herbivore D. Decomposers
68. Which is the latest technology on eye surgeryA. CTscan C.Liseof laserB.Ultrasound D. X-rayvision technology
69. A role taken by a type of organism within its community.A. mutualism·B.nicheC.producerD. predator and prey
70. Type of symmetry exhibited by hydraA. Lateral . C.RadialB. Bilateral D. Non-symmetrical
71. A deviation in the spherical curvature of the eye or a lens, resultingin distorted images.
A. Astigmatism C.Farsightedness8. Glaucoma D. Nearsightedness--....
72. This doctor is the one consulted if someone suffers from stroke.A. OncologistB. NeurologistC.CardiologistD. Internal Medicine Doctor
73. Which is a non-renewable source of energy?A. Fossil fuel C.TidalB.Solar D.Wind
74. Wh'3t trophic level is occupied by the herbivores in an ecosystem?A. Primary consumer C.Tertiary consumerB.Secondary consumer D. Decomposer
75. Temporary wilting of plants during high-noon is attributed toA. Rapid respiration C.Rapid transpirationB. Rapid photosynthesis D. Rapidcondensation
76. On the basis of its habitat, Kangkongcan be classified asA. Hydrophyte C.XerophyteB.Epiphyte D. Mesophyte
n. Type of bacteria which grows best in the absence of air or oxygen.A. AerobicB. Facultative aerobesC.AnaerobicD. Bacillus bacteria
,II! ;~MET REVIEW134 'M LET SPECIALIST
78. Which pair of terms are actually referred to thesarne organism
A Heterotroph} autotrophB. producer, predatorC. HetNotroph, herbivoreD. Autotroph, parasite
79. Why is a bird considered warm-blooded animal?A.Temperature of the body increases during hot
weatherB. Temperature of the body remains always constantC. Temperature of the body changes when the
environment's temperature changesD. It's body is covered with feathers to keep it
always warm
80. Part of the seed that grows into the first true rootsA. Radicle C. PlumuleB. Hypocotyl D. Testa
81. The rernains or impression or a prehistoric plant or animalembedded in-rock and preserved in petrified form.
A. Imprints C. Buried bones
A. Fossils D. Traces
82. He was a 19th Century Moravian botanist who proposed the theoryof heredity based on the recurrence of characteristics transmitted
as genesA. Carl Linnaeus C. Gregor MendelB.tuther Burbank D. Francis Crick
83. His extensive experiments on fruit flies led him to formulate his
famous gene theoryA. Gregor Mendel C.Thomas MorganB. Luther Burbank D. James Watson
84. The Binomial Systemof naming organism iscomposed of .. _(in proper order)
A. Order and Species C.Speciesand GenusB.Speciesand Order D. Genusand Species
"'"
85. The ability of an animal to resemble another animal, plant orinanimate object in order to escape an enemy is known as
A. CamouflageB. Mimicry
. C.Adaptive colorationD. Protective mechanism
86. Biological pigment responsible for the red coloration in red algaeA. PhycocyaninC.CaroteinoidB. FucoxanthinD.Phycoerythrin
87. Which of the following activities are controlled byautonomic nervous system
A. Breathing and digestionB. PainC.Danger awarenessD. Speaking and thinking
88. Which excretory organ functions in eliminating excesswater, saltsand urea from our body?
A. Colon C. Skin
B. Lungs D. Liver
89. What relationship is exhibited when the tree gives a safe nestingsite to a bird which in turn eat the insects which damage the tree.
A. Cooperation C.MutualismB.Commensalism D. Competition
IV.. i.••••MET REVIEW1J3.J~F~jLET SPECIALIST
90. An important feature of a dicot leaf isA. parallel venation C.absence of midribB. netted venation D. small round shapes
91. Which of the following describts a populationA. Number of butterflies in a bushB. Number of rice plants in a hectare land from
January to JuneC.Number of snakes caught in a farm during
rainy seasonD.Number of cats living in a house
92. A disorder wherein a person is physically deformed and has learningdifficulties because of congenital thyroid deficiency.
A. Goiter C.DwarfismEs. Cretinism D. Hyperthyroidism
93. Messenger RNA is the form of RNA in which genetic informationtranscribed from DNA as a sequence of bases is transferred to
.A..RibosomesB.Golgi bodiesC.Endoplasmic reticulumD. nucleolus
94. A flexible structure containing blood vessels, attaching a fetus tothe placenta during gestation.
A. Oviduct C.PlacentaB. Fallopian tubes D. Umbilical Cord
95. New DNA formed from the rearrangement of genetic material,especiallyby crossing over in chr.omosomesor by the artificial joining
'~ •..
of DNAsegments.A. Recombinant C. RecessiveB. Cloned D. Energized
"-5K-' LET SPECIALIST 137
96. It is the reason why water can go up even in tall treesA. Turgor pressure C.T(anspirationB.Ag2inst gravity gradient D. Capillarity
97. Era which isalso known"'cfsthe age of reptilesB.Jurassic C.CenozoicB.Mesozoic D. Permian
98. The orientation of a plant or other organism in response to light.A. Photosynthesis C.ThigmotropismB.Photoreactivation D. Phototropism
99. It is the process wherein bird feed it's young by swallowing thefood first and then it is brought up again to their mouth to be putinto the mouths of their young birds
A. Scooping C.RegurgitationB.Swallowing D. Maceration
100. In the Nitrogen Cycle, what form of nitrogen is released into theatmosphere as a result of chemical reaction by nitrogen-fixingbacteria.
A. Ammonia C.UreaB. Inert Nitrogen D. Nitrites
101. Which of the following muscle has smooth striation and movesinvoluntarily
A. Small intestine C.ArmsB.Thigh D.Heart
102. Which type of joint allows us to move our legs and arms in alldirections
A. Hinge C.SlidingB.Ball and Socket D. Skeletal
,0':)10, MET REVIEW138 '4,) LET SPECIALIST
103. Fish will succumb to death in a polluted pond mainly becauseA. of lack of oxygenB. there is insufficient foodC. the dirty water is unhealthfulD. dirt will clog the leaves of the plants
104. A polypeptide pancreatic hormone which lowers glucose levels inthe blood, a lack of which causes diabetes.
A, Glucagon C.ChymotrypsinB. Insulin D. Parathormone
105. It is a new medical method cf treating the patient by activatinghis own body system of defense or resistance.
A. Chemotherapy C. Immune therapyB. Passiveimmunity D. Gene therapy
106. Which is responsible in spreading malarial parasites?A..Anopheles mosquitoes C.ManB. Aedes mosquitoes D. Flies
107. In what way inbreeding can take place in plants?A. Cross-pollination C. Self-pollinationB. Hybridization D.Grafting
108. What is a major problem in organ transplants?A. Antigen-antibody reaction C.Sexof donorB. Raceof recipient D. Immune Inccrnpatibility
109. Which of the following is respo1'lsiblefor the red tide phenomenon?A. Phytoplankton C. DinoflagellatesB. RedAlgae D. Diatom
110. The membranous tube, reinfcrced by rings of cartilage, conveyingair between the larynx and the bronchial tubes, also known as thewindpipes.
A. Esophagus C.Glottis""
B. Pharynx D.Trachea
111. Pigment cells found ber.eath the scales of fishes which areresponsible for their bright coloration.
A. BioluminiscenceB.ChromatophoresC.Color receptorsD. light sensitive cells
112. Which of the following is a representative of class chondrichthye?A. Whale C.OctopusB. Milk fish D.Shark
113. What is the sex of the offspring if an egg cell with an X chromosomeis fertilized by sperm cell with an X chromosome?
A. MaleB. FemaleC. B'sexual
D. Male with a female features
114. What do we call organisms that depend on others for their foodbut do not live with them and mayor may not kill them?
A. Pests C.PredatorsB. Parasites D. Prey
115. Which is a distinctive characteristic of an insect?A. Endoskeleton C.Three pairs of legsB. Hairy body D. Soft body
140 tJk)~Jr~~~116. How do you determine the population density of grass that
isgrcwing in your garden?A. Count ali the grasses.B. Measure the area occupied by each grassC.Measure the area and count the number of grassesD. Make a separate count for short and tall grasses.
117. Which is referred to a population which hasa common ancestry andexhibits a constant set of physical characteristics.
A. Race C.TribeB. Family D. Order
118. What symmetry is exhibited by an organism where the organsarranged originating from the center?
A. Radial C.AssymetryB. Bilateral D. Lateral
119. A small colourless disc-shaped cell fragment without a nucleus,found in large numbers in blood and involved in clotting.
A. Lymphocytes C.Thrombocytes8. Leucocytes D. Erythrocytes
120. In DNt\, which IS complementary to e3ch other?A. Adenine and CytosineB.Adenine and ThymineC.Ribose and a baseD.Guanine and Thymine
121. Which of the following is responsible for the state of turgidity inthe leaves or stems of plants
A. Cytoplasmic strearnlrig-B.Surface TensionC.Turgor pressureO. Plamolysis
17.5.
126.
127.
122. Which factor contributes to an increase in flies populationA. dirty placeB. immigrationC.emigrationD. resistance to in'Secticide
123. Which is a by-product of Photosynthesis?A. CO2 C. 02
B'03 D. N2
124. In ammonification reaction, nitrate is converted intoA. Protein C. NitriteB.Ammonia D.Urea
The vascular tissue in plants which conducts water and dissolvednutrients upwards from the root and also helps to form the woodyelement in the stem.
A. Xylem C.CambiumB. Phloem D. Pith
The vascular tissue in plants which conducts sugars and othermetabolic products downwards from the leaves.
A. Xylem C.CambiumB. Phloem D. Pith
In PCRmethod, the main purpose of transferring DNA fragmentsinto Agarose gel and subjecting to electrophoresis is
A. for DNA base pairingB.to separate DNAstrandsC.Toarrange DNA fragments by sizeD.Tomake DNA bands visible
--------- -----'-'.'-"••• nc. ---
134. The transformation from single cell into a multi-cellular organism isbelieved to be due to
A. Adaptation C.MetamorphosisB. Evolution D. Genetic variation
'"'.)R' LIT sPEciAliST 143
135. Which will happen if a red blood cell is put in distilled water? Redblood cell will
A. plasmolyse C..swell
B.shrink D. remain the same
136. Which of the following will happen if you drink sea water?A. Plasmolysis of the cellsB. Poisoning of the cellsC. Increased in turgor pressure of the cellsD. Bursting of the cells
137. A compound which by its breakdown in the body provides energyfor physiological processes such as muscular contraction.
A. EnzymesB.Adenosine TriphosphateC.Adenosine DiphosphateD. Fats
138. Diploid chromosomes do not normally Occur inA. Somatic cells C.gametesB. Fertilized ovum D.Ovary
139. At metaphase in Meiosis I, the chromosomes are attached to thespindle fibers as
A. Double chromatidsB.Single chromatidsC.Homologous pairsD.Tetrad of four chromatids
\"'~METRMEW144 ~3kJlET SPECIALIST
140. A type of cell division that results in daughter cells each with half
the number of chromosomes of the parent cellA. Mitosis c. MeiosisB. Metaphase D. Interphase
141. The bi-Iayer nature of cell membrane is due toA. protein components C. GlycolipidsB. phospholipids D. Disaccharides
142. The point on a chromosome by which it is attached to a spindle fibre
during cell division.A. Centromere C. CentrioleB. Centrosome D. Cell plate
143. A space or vesicle within the cytoplasm of a cell, enclosed by amembrane and usually serves as storage of food or water in plants.
A. CollenchymaB. VacuolesC. PithD. Xylem and phloem vessels
144. Which of the foliowing is the chemical composition of cell wail?A. Cellulose C. LipidsB. Proteins D. Nucleic Acids
145. The thin tissue forming the outer layer of the body's surface andlining the alimentary canal and other hollow structures.
A.Connective tissue c. EpitheliumB. Nerves D. Skin
146. Which is also known as the male.gametophyte of a flowering
plant?A. StamenB. Pistil
C. PollenD. Anther
'-5lRJ LETSPECiA"L;sr 145147. Oxidation is a reaction in which electrons are lost to another
substance or molecule. Its opposite reaction isA. HydrationC. HydrolysisB. ReductionD. Oxygenation
148. What structure controls the opening and closing of thestomata of leaves
A. lenticelB. MesodermC.Guard cellsD. Chloroplast
149. Which gas is needed during seed germinationA. HydrogenB.OxygenC. Carbon dioxideD. Nitrogen
150. Type of relationship that exist between algae and fungi in a lichen.A. CommensalismB. ParasitismC.CompetitionD.Symbiotic
PRACTICE TEST # 2
INSTRUCTIONS: Choose the correct answer.
1. Fruit growers oftenpropagatetheir plants by asexual means becausethe resulting offspring will _
A. be more resistant to pests.
B. be more improved variety than the parent.e. show little variation than the parentD. bear larger fruit than the parent
2. Which of the following is the end product of the dark reaction phaseof Photosynthesis?
A. Glucose e. OxygenB. Carbon dioxide D. Fructose
3. Which of the following plants has modified leaves.A. Grass e. Onion
B. Potato D. Taro
4. If the staminate and pistillate flowers of plants are found in separateindividuals, then it is described as-------
A.Dioecious e.HermaphroditeB. Monoecious D. Homosexual
s. The eyes of potato are actuaiiy _
A. Roots e. Leaf scars and budsB. Flowers D. Stems
6. The green colour of chlorophyll is because of the greenportion of light that is _
A. absorbed e. reflectedB. dispersed D. refracted
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7. Which of the following plants is insectivorousA. Tomato C.Water hyacintB. Pitcher plant D.Guava
8. Subdivision where all flowering plants belong isA. Gymnospermae C.PteridophytaB.Angiospermae D.Tracheophyta
9. Which is known as the energy currency of all living things.A. ADP C.ElectronB.ATP D.Sun
10. Spraying plants with a combination of auxin andgibberellins will _
A. induce ripening of fruitsB. induce floweringC.preventsenescenceD. prevent insect infestation
11. What kind of compound is released by leeches so that they can suckblood of the host with ease.
A. Anti-coagulantB.Vitamin KC.Blood dissolving compoundD.Antibiotics
12. When body parts can be divided exactly into two equal halves andeach half is a mirror image of the other.
A. Bilateral C.Point symmetricalB. Radial D.Asymmetrical
13. Which is the branch of zoology toncerned with the study of fish?A. Marine Biology C.Herpetology .B. Icthyology D. Ornithology
14. The class Antholoa(marine coelenterates that secrete hardskeletons) includes the sea anemones and
----A. Obel/as C. JellyfishB.Corals D.Seaurchins.~
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15. Two organisms belong to the same species if they are capable of:A. Symbiotic relationshipsB. interbreeding in a natural wayC. living harmoniously in the same eccsystemD. establishing a niche in the environment
16. Which of the fOllOWingpairs are possible hosts of Ascaris?A. Man and cow C.Cow and pig8. Man and dog D. Man and pig
17. It is the only known egg-laying mammal?A. Alligator C.PlatypusB~Bat D. Dolphin
18. Which of the follOWing :sa marsupial animal?A. Wallaby C.HeronB. Bat D.Dclphin
i9. In amoeba, digestion takes place in-----
A. Stomach c. Contractile vacuoleB. Lysosomes D. Pseudopodia·
20. 'vVhich of the follOWing are the stages in the life cycle of agrasshopper?
A. Nymph, pupa, adultB. Egg,pupa, adultC.Egg,nymph, adultD. Egg, larva, pupa, adult
rthropods exhibit fast and coordinated movement because theypossess _
A. exoskeletonB. small limbs
C.very light appendagesD. jointed appendages
22. Towhat order does egg-laying mammal belong?A. Vertebrata C.MonotremataB.Craniata D. Ungulata
23. The toxic compound which the bees releasedwhen they sting comesfrom their __
A. proboscis C. intestinesB. mouth D. salivaryglarids
24. Which of the following is the distinctive physical feature of Homo
sapiens over the lOWErmammals?A. larger brain C. larger spinal chordB. larger heart .D. blood vessels
25. vVhat kind of adaptation which makes the walking stick insect toelude its predator
A. Bioluminiscence C.Protective coloration6. Mirnicrv D.carnouflage
26. An instrument which can be introduced into the body to view itsinternal parts.
A.Scanner C.EndoscopeB. Ultrasound D.X-ray
27. Any of the clusters of bulbous nerve endings on the tongue and inthe lining of the mouth which provide the sense of taste.
A. Taste buds C.Tongue epitheliumB.Taste nerves D.Taste glands
J£-. »'rfrrrfcf!frfefu~dbwfng is the main functiOr\ of the ivmph?A. Anti-cogaulantB. protects the body from infectione. helps in the lubrication of jointsD. helps inthetransport of oxygen
29. A pituitary glycoprotein hormone that stimulates ovulation infemales and the synthesis of androgen in males.
A. Follicle-Stimulating Hormone(FSH)B. luteinizing Hormone(lH)e. EstrogenD. Progesterone
30. A hormone secreted bythe anterior pituitary gland which promotesthe formation of ova or sperm.
A. Follicle-Stimulating Hormone(FSH)B. Luteinizing Hormorte(lH)C.EstrogenD.Testosterone
31. A pancreatic enzyme that promotes the breakdown of fats.A. Trypsin e. lipaseB.Chymotrypsin D. ProteaSE
32. A digestive enzyme which breaks down proteins. in the smallintestine, secreted by the pancreas.
A. Trypsin e. lipaseC.Protease D.Lactase
. 33. A soluble protein present in blood plasma that is responsible forblood clotting .•
A. Fibrinogen CvGlobulinB. Albumin D. Platelets
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34.
35.
36.
37.
38.
39.
40.
They are also known as the "soldiers of the body" because theyfight the disease-causing microorganisms.
A. Erythrocytes C.LysosomesB. Leucocytes D, Antibodies
An artificial device for stimulating and regulating the heart muscle.A. Cardiac regulator C.Heart pumpB.Pacemaker D.Catheter
Which hormone promotes the development of sexualcharacteristicsin female such as enlarged breasts?
A.Progesterone C. Luteinizing hormoneB.Testosterone D. Estrogen
It also known as the largest internal organs of the human body.A. Heart C.Small and Large instestinesB. Liver D.5tomach
In what way does the liver assist the disgestive system?. A. combines with the pancreatic enzymes
B. secretes bileC.converts glucose into starchD. secretes enzyme to digest proteins
What do we get from fats and carbohydrates?A. Heat and energy C. Cell buildersB. Cholesterol D.Growth regulators
Which part of the ear is dangerously affected when sound is of ahundred decibels?
A. Eustachian tubeB.StirrupC. AnvilD.Tympanic membrane
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41. Which part of the neuron conducts impulse towards the cell body?A.Axon (.SynapseB. Dendrite D.Ganglia
42. The long thread-like pa'F1.of a nerve cell along which impulses areconducted from the cell body to other cells.
A. Axon C.SynapseB. Dendrite D.Gangiia
43. TWhat is the main function of the large intestine?A. Stores waste and food productsB. Digest food into liquid formC.Exrete bile pigments from ductsD. Exrete salts and fats
44. It is known as the "master gland" due to its wide influence on theactivity of other glands.
A. ParathvrotdB. PituitaryC.AdrenalD.Thyroid
45. Whet hormone is deficient in cretinism?A. AdrenalinB.TestosteroneC.ParathormoneD.Thyroxin
46. Which of the following causes our nose to "run" when we cry?A. Mucus gland is activatedB. Sinuses release waterC.The lungs release water vaporD.Tearsenter the duct to the nasal cavity
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47. What blood test is used to provide information about agglut:nation-
reactions between blood donor and recipient?A. Complete blood count (CBC)
B. Type and cross-matchC. Albumin Agglutination
D. Clotting test
48. The membrane or sac enclosing the heart.A.Myelin sheath C. Atrial sac
B. Pericardium D. Septum
49. Which of the following is the name for the fluid which is a mixture
of bile and partially digested foodA. Gastric fluid C. Pancreatic fluidB. Chyme D. Bile mixture
50. What type of muscle is found in all the walis of stomach.A. Voluntary C. SmoothB. Striated D. Cardiac
51. Which explains the more reddish appearance of our lips than our
palm?A. There are many blood vessels in the lipsB. There is a more increased blood flow in the lips
C. Lips epidermis is thinnerD. There is less melanin pigment in lips than in the
pa1m
52. Anyof the blood vessels forming part of the circulation system bywhich blood is conveyed from all parts of the body towards the
heart ..A. AtriumB. Vein
C. ArteryD. Aorta
'~j<J lET sPEciA"iisT 1ffi53. It constitutes the main structural component of animal connective
tissue.A.CollagenB.AlbuminC.Glycogen ~ _D. Fibrinogen
54. When you fail to eat your breakfast, what could serve as the fuelsource of your body.
A. Glycogen in the liverB. Cholesterol in the blood vesselsC.Fats in adipose tissue
.D.Albumin in the blood
55. Which part of the breathing occurs when the diaphragm musclesare pulled downward, thus increasing the chest cavity?
A. ExpirationB. InspirationC.ExhalationD. Pulmonary resuscitation
56. What instrument hasa flexible gastroscope that is used to examine. the esop!1agusana stomach?
A. UltrasoundB.EndoscopeC. Scan.nerD. Laser
57. Funnel-shaped opening through which egg cell is released.A. UterusB. CervixC.Fallopian tube
D. Ovary
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58. An automatic reaction to stimulus iscalled _A. ReflexB.lmpulseC.InstinctD. fight or flight behavior
59. It denotes cells ornuclei containing more than twohomologous sets of chromosomes.
A. DiploidyB. MonoploidyC. PolyploidyD.Chromosomal aberration
60. Theory that states that life originated from non-living matter?A. Spontaneous generation theoryB.Creationism theoryC.Cosmology theoryD. Biogenesis theory
61. The cytoplasmic division of a cell into two daughter cells at the endof mitosis or rneiosls.
A. CytokinesisB.Cell cycleC. FissionD. Recombination
62. Which of the following parents may produce a colorblind male?A. Normal vision mother and colorblind fatherB. Heterozygous normal vision mother and colorblind
fatherC.Heterozygous colorblind mother and normal fatherD. Homozygous colorbirna mother and normalfather
-:>j<~ lET SPECIALIST 1~1
63. A trait controlled by a gene that is located in the x-chromosome isknown as
A. Sex-linked trait C.GenotypeB. Gene-linked trait D. Phenotype
64. Which of the following is the phase when population is increasingat exponential rate.
A. Lagphase C. Multiple phaseB. log phase D.-Accelerated phase
65. Which is one benefit obtained from green-house effect.A. Servesas d source of light energy8. Servesas thermal blanket in our planetC.Speeds up the growth of plantsD. Allows release of heat energy
66. A food web is a network of interactingA. Food chainB. ProducersC.ConsumersD. Ecosystems
67. Pollution has becorns a major problem rnainlv because ofA. dwindling energy resourcesB. dependence on fossil fuelsC. lack of technical know-how in extracting some
energy sourcesD.abundance of energy sources
68. Which is the correct food chain?A. grassagoata EagleB.corns carabaoa LionC.rlcea grasshoppera snakeD.coconutahermit craba human
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69. Which of the following can form a part in fossil fuel production?A. Hydrologic cycle C.Nitrogen cycleB. Phosphorus cycle D.Carbon cycle
70. What is the estimated human population at present?A. 4 billion C.6 billionB. 5 billion D. 7 billion
71. The process of converting sugar into alcohol by yeasts is known asA. fermentation C.blornass production-B.putrefaction D. Hydrolysis
72. Region in which most of the atmosphere's water vapor is found.A. Stratosphere c. IonosphereB.Troposphere D. Biosphere
73. Which of the following is NOTa green house gas?A. water vapor C. Nitrous oxide
. B. methane D. Hydrogen Sulfide
74. Which best describes the climax stage of an ecological successionA. most organisms have evolved into a new kind
of organismsB. it changes frequently from season to seasonC. it is populated only by tall treesD. It persists until drastic changes occur
75. Pollution from burning coal can be reduced throughA. conservationB. recycling ~C. limit of useD.air scrubber
76. The gradual wearing away of rock or soil by physical or chemicalbreakdown and transportation of material by water, wind, or ice.
A. WeatheringS. ErosionC. Flooding '""'-".D.Avalanche
77. Why is incineration not favored as a method of waste disposal?A. Expensive for a third world country like oursB. Requires more energy to useC. Releasesnoxious and toxic gasesD. Causesrespiratory diseases
78. Which of the following best describes the wind system that resultsto the formation of desert region
A. Warm is descendingB.Air massesare stationaryC.Dry air descendingD. Cool air is rising
79. The process of removing salt from seawater is known asA. purification
. B. filtrationC. desalinationD.water treatment
80. Ozone layer thinning is attributed to the release of CFe'sfromA. Industrial pollutionB. Fossil fuel burningC.Styrofoams and freonsD. Green house
,II:. l~ Mn REVIEW1BJ:Jj}<J LET SPECIALIST
81. Homologous chromosomes pairing results toA. movement of centrioles in both poles.B.double alignment of chromosomes in metaphaseC. production of two daughter cells with complete sets of
chromosomesD. single alignment of chromosomes in metaphase.
82. How many ATP molecules are produced via oxidativephosphorylation when one mole of glucose is metabolized intocarbon dioxide and water?
A.16 C.38B.4 D.34
83. Which type of muscle tissue found in all walls of our stomach isresponsible for the process of peristalsis?
A. Smooth C. Voluntary8. Striated D. Cardiac
84. Some plants have waxy leaves due to the presence of cutins. Whichof the following is a characteristic of cutin?
A. Viscous at room temperature8.ls a hydrophobic compoundC.Long chain fatty acidsD. Is hydrophilic compound
85. In electron transport chain (etc), which is the finalacceptor of electron?
A. Water C.Hydrogen Ion8. Oxygen D. NAD+
86. Which of the following is a metabolic pathway common to bothaerobic and anaerobic respiration?
A. Krebs cycle C. Electron Transport ChainB.Glycolysis D. Fermentation
87. Which is the bUilding block of protein.
A. monomer C.amino acidB.monosacharride 0 fatty acid
. " J".501 IU:VU:W~J< lET SPECIAlIST161
88. Which of the following IS a monomer?A. oligopeptide C.starchB. lactose D.glucose
89. The selectivity of the cell membrane is most closely associated withthe maintenance of----
A. Hydrogen ion concentrationB.Salt balanceC.HomeostasisD. Pressure gradient
90. By which process DNA code is copied into a RNA?A. Transcription C.Trans!ationB. Repiication D. Polymerization
91. What is the probability of getting bb children if both parents haveBbgenotype?
A.X C.l/3B. ~ 0.1/5
92. In the Calvin cycle, glucose is synthesized directly from----A. Glycera/dehyde-3-phosphate
B.Dihydroxyacetone phosphateC.pyruvic acidD.carbon dioxide
93. It is also known as the breathing organs of plants that is normallyfound in the stems and trunks.
A. Guard cells C. Lentice/sB.Stroma D. Pith
~<~MET RtVUW162 'J;).;. LET SPECIALIST
94. TWhen a plant stops growing even if conditions appear to befavorable, it is in a state of -----
A. Dormancy C.AbsissionB. Senesence D. Hibernation
95. "Leaf fall" which regularly occurs during winter monthsresulting from the separation of specialized cell layersnear the base of the petiole is a condition called _
A. AbscissionB.SenescenceC.DormancyD. Annual sheds
96. Some vines can climb post easily because they respond positivelyto touch. Suchresponse is known as _
A.Geotropism C.ihigmotrop:smB. Phototropism D. photoperiodism
97. The addition of hydrogen during photosynthesis occurs during theprocessof _
A. Oxidation C.CarbonationB. Hydration D. Reduction
98. Which of the following has'a modified stem used as food storage?A. Onion C.PotatoB.Tomato D.Asparagus
99. Which is a soluble form of nitrogen which can be synthesized into a
protein.A. Nitrite ,. C.UreaB. Nitrate D.Ammonia
100. If the stems or bark of the plants are cut completely, they will witneiand die because------
A. the cambium layer is destroyed.B. the epidermis is greatly injured.C.Stem tissue 1ssoftened.D. the fibrovascular vessels are cut.
, :1_! fnS;1I IIlICYltW'->;<-r lET SPEclAlIsrl63
101. The study of the conversion of energy in organisms.
A. Bioenergetics C.Biochemical.PathwayB.Entropy D. Energyconservation
102. What are the finalPhotosynthesis?
A. GlucoseB.Starch
product of the Calvin cycle phase of
C.SucroseD. Carbon dioxide
103. After fertilization which part of the flower develops into a fruit?A. Stigma C.OvaryB.Corolla D.Anthers
104. Which of these is a characteristic of dehiscent plant?A. fruit is fleshyB. bursts open when ripeC.fruit is enclosed in thick coveringD. Remains closed when ripe
105. Which of the folloWing is an example of a dehiscentplant.A. Peanut C.Jack fruitB.Coconut D.Tomato
106. Swedish naturalist, who developed binomial nomenclature toclassify and organize plants and animals.
A. Gregor Mendel C.Charles DarwinB.Carolus linnaeus D. Robert Hook
,./.,,""MET REViEW164 :J;.~:JlET' SPECIALIST
107,
108.
109.
110.
112.
/'\ horticulturist wants to know whether his bean seedswill surely germinate. What is the usual practice?
A. Press and get the hard onesB. Select those that float on waterC. Place them in water and choose those that sinkD. Open and find out if it has a cotyledon
What part of the stem of a dicot plant is responsible for the increase
in diameter?A. EpidermisB. Cambium Layer
C. PithD. Schle'renchyma
We should avoid indiscriminate cutting of trees because _A. It is prohibited by lawB. it makes the forest dryC. loosens the soil and causes floodingD. we wi:: run out of wood for building houses
What is the chemical substance that is responsible for the flashing
of light in fireflies?A. GlowersB. LuciferinC. BioluminiscenceD. Fluorescence
'«Q,~~Q-.Q:,~~Q..~~Q,~~Q,'«(Q-.~~~s"QQ.mfJTIIQ~_rx&!~nds?A. Whale C. PorpoiseB. Shark D. Kangaroo
What do you call the organ of protection of the coelenterates which
secretes poison?A. SpiculesB. Nematocysts
C. Poison fangD. Spines
· 113. Which is a distinguishing characteristic of a mollusk?A. jointed legs C. thick exoskeletonB. soft-bodied D. exhibits radial symmetry
114. Which of these is NOT an insect?
A. grasshopt5'eF C. fly
B. walking stick D. scorpion
115. The bright coloration of some amphibians are due to a pigmentcells called __
A. bioluminescene C. melanin
B. chromatophores D. color receptors
116. Structural adaptation of birds that enable them to fly at highaltitudes
A. with porous bones
B. sights is well-developed
C. body is covered with feathersD. with strong limbs
117. Which of the following is the correct order of stages in themetamorphosis of a grasshopper?
A. nymp/1a pupaa adultB. egga nympha adultC. tarvaa pupae adult
D. nvmphapupaa adult
118. Periodic shedding of the exoskeleton by insects and otherarthropods to allow growth is called _
A. Skin moltingB. EcdysisC. Epidermis sheddingD. Larval stage
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119. Which of the following happens when an animal goes to
hlbernation?A. body temperature is increased.B. rate of metabolism is decreasedC. body temperature is decreased
D. the animal sleeps all day
UQ. Which is a characteristic of a mammal which is preyed upon by
other animal.A. has a keen sense of dangerB. has eyes on both sides of the headC. has claws on feetD. has bigger limbs
121. The antennae structure on the head of an insect like moth is used
forA. finding its way back home
B. seeing. C. hearing
D. smelling
U2. The pairs of bristles on each segment of an earthworm is known as
A. setaeB. suckers
C. coelomD. clitallium
U3. The chemical compositicn of the hard exoskeleton of various
arthropods such as crustaceans and insects.A. calcium carbonate C. calcium phosphateB. chitin D. celiulose
124. These animals exhibit polymorphism.A. beesB. cockroaches
C. elephantsD. monkey
125. Which of the following animals can reproduce through regeneatiorA. FlatwormsB.EarthwormsC.RoundwormsD.Starfishes •
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126. Which is the proper arrangement of an insect body partsA. head, cepha/othorax, abdomenB. head, thorax, abdomenC.head, abdomen, trunkD. head, abdomen, tail
127. What ailment iscommon in most cigarette smokers that affects theair sacsof their lungs?
A. PneumoniaB.AsthmaC.EmphysemaD.Tuberculosis
128. Removing collagen from the bone will make the bone----A. stiffer C.weak
B. loose D. brittle
129. Part of the brain that coordinates body movements.A. cerebrum C. cerebellumB.medulla oblongata D. hypothalamus
130. Which organ is responsible forthe re-absorption of urea into aminoacids.
A. kidneyB. liver
C.gall bladderD. pancreas
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131. The painful stretchingortearing of ligaments (tissues that connectbones at joints).
A. Bursitis C.ArthritisB.Sprain D. Rheumatism
132. Nightblindness is caused by difficiency in vitamin _A.D C.AB.K D.E
133. Small gland that secretes a hormone that controls thedepositing of calcium and phosphorus in bones.
A Thyroid gland C. LiverB. Parathyroid gland D. Pancreas
134. Which is the most recent technology in the surgicaloperation of the retina of the eye?
A.laser C.MRIB.CTscan D. Genetic engineering
135. Which of the following methods can be used to identitydefects of a fetus as early as eight month of pregnancy?
A. UltrasensingB.Chorionic samplingC.Barr testD. Amniocentesis
136. A battery-operated electrical device inserted into thebody to deliver small regular shocks that stimulate theheart to beat in a normal rhythm.
A. Ventricle pumpB.Superior vena cava stimulatorC.Atrioventricular pumpD. Pacemaker
137. The presence of blood in the urine, as a result of injury to or diseaseof the kidneys, ureters, bladder, or urethra.
A. Kidney infection C. HematuriaB. Hematoma D. Hemorrhages.....•.•..
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138. Ring of muscle that is located between stomach andsmall intestines that regulates the passage of food.
A. pyloric sphincter C. serosaB. peristaltic muscle D. medulla
139. The contraction of the heart, during which blood ispumped into the arteries.
A. Diastole C. Cardiac arrestB. Systole D. Hypertension
140. Type of circulation that carries oxygenated blood from the heartto all the tissues in the body except the lungs and returnsdeoxygenated blood carryirlg waste products, such as carbondioxide, back to the heart.
A. pulmonary C. open circulationB. systemic O. closed circulation
141. One of Mende/'s laws stating that during meiosis, the alleles of agene pair separate, each going to a separate gamete.
A. Segregation
B. Independent assortmentC. Dominance
D. Recombination
142. Which type of muscle joint is responsible forstraighteningor bending our arms and legs?
A. Pivot C. Ball and SocketB. Sliding D. Hinge
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143. Blood type which can be transfuse to any patient without having to. worry about incompatibility.
A.A C.OB. B D.AB
144. Which of the following organisms is promoted by theDepartment of Agriculture as weed controller and as nutrientsource in irrigated rice fields?
A. Bacillus thuringensis .C.Tricoderma sp.B. Azolla sp. D. Kakawate
145. What condition comes about when two alleles bothappear in the phenotype?
A. Sex-linked allelesB. Incomplete dominanceC. CodominanceD. Dornlnance
146. Studies show-that there are organs of the body that have lost theirusefulness and which may disappear later. These organs are called
A. ExtinctB. Vestigial
C. RecessiveD. Residual
147. The phenomenon which allows certain traits not usefulto the organisms to remain in the population by chanceis known as _
A. genetic drift C. natural selection
B. speciation D. evolution
148. Within the eukaryotic nucleus,~NA is wrapped aroundspecialized proteins called __ .
A. Albumin C. HistoneB. Globulin D. Collagen
149. The number of autosomes and type of sex chromosomes norm"present in human egg cell.
A. 44+ XVB.44+XXC. 22 + V -D.22+X
150. A protein produced by cells in response to virus infectionthat inhibits viral replication.
A. interferonB.antibodyC.globulinD.serum
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