Genetics Jeopardy

Meiosis

Mendel Genetics Problems Misc.

100 100 100 100 100

200 200 200 200 200

300 300 300 300 300

400 400 400 400 400

500 500 500 500 500

100

Crossing over occurs during which phase of meiosis?

A).prophase IB).anaphase IC).telophase ID).prophase IIE).metaphase II

A. Prophase I

200

The particular position of a gene on a chromosome is known as a(n)

A).alleleB).tetradC).chiasmaD).locusE).map distance

D. Locus

300The frequency of crossing over between any two

linked genes is

A).higher if they are recessive

B).difficult to predict

C).determined by their relative dominance

D).the same as if they were not linked

E).proportional to the distance between them

E

400Mitosis and cytokinesis result in the formation of

______; meiosis and cytokinesis result in the formation of ________.

A).four diploid cells ... four haploid cells

B).two diploid cells ... two haploid cells

C).two diploid cells ... four haploid cells

D).two diploid cells ... two diploid cells.

E).four haploid cells ... two diploid cells

C

500During meiosis, homologous chromosomes

sometimes "stick together" and do not separate properly. This phenomenon is known as _____.

A).cellular sterilityB).meiotic failureC).gametic infertilityD).nondisjunctionE).sticky chiasmata

D

100An allele is _____.

A).a type of chromosomeB).the dominant form of a geneC).a variety of pea plant used by MendelD).an alternative version of a geneE).the recessive form of a gene

D

200GgTt pea plants can produce _____________

type(s) of gametes, but a ggtt plant can produce _____________ type(s) of gametes.

A).one ... twoB).two... oneC).four ... twoD).four ... oneE).one ... One

D.

300

In a certain plant, the alleles A, B, and C are completely dominant to the alleles a, b, and c. A plant with the genotype AABbcc will have the same phenotype as the plant with the genotype _____.

A).AAbbccB).aabbccC).AaBBccD).AABBCcE).none of the above

C.

400

Crossing a known genotype with an individual with an unknown genotype is known as this.

Testcross

500Pea flowers may be purple (W) or white (w). Pea seeds

may be round (R) or wrinkled (r). What proportion of the offspring from the cross WwRr x WwRr will have white flowers and wrinkled seeds?

A).1/16B).3/16C).8/16D).9/16E).all of them

A.

100

In crossing a homozygous recessive with a heterozygote, what is the chance of getting an offspring with the homozygous recessive phenotype?

A).0%B).25%C).50%D).75%E).100%

C.

200

The ABO blood group system in humans is an example of

A).incomplete dominanceB).codominanceC).pleiotropyD).epistasisE).penetrance

B. Codominance

300A man who carries an X-linked allele will

pass it on to

A).all of his daughtersB).half of his daughtersC).all of his sonsD).half of his sonsE).all of his children

A.

400

Skin color is controlled by more than one gene. Therefore it is this type of inheritance.

Polygenic

500Use the following choices to answer questions 1-3.A).0B).1/16C).1/4D).1/2E).3/4

1).Probability that the genotype Aa will be produced by the parents Aa X Aa.

2).Probability that the genotype Rr will be produced by the parents Rr X rr.

3).Probability that the genotype TTSs will be produced by the parents TTSs X TtSS.

1. D 2. D 3. C

100

A couple who are both carriers for the gene for cystic fibrosis have two children who have cystic fibrosis. What is the probability that their next child will have cystic fibrosis?

A).0%B).25%C).50%D).75%E).100%

B.

200What do all human males inherit from their mother?

A).mitochondrial DNAB).X chromosomeC).Hair ColorD).Only A and B are correctE).A, B, and C are correct

D.

300A mammalian zygote with which of the following

chromosomal abnormalities will NEVER develop into a viable embryo?

A).YO

B).XO

C).XXX

D).XXY

E).XXXY

A.

400Huntington's disorder is due to an autosomal dominant

allele. If a heterozygous male marries a normal female, what percentage of the offspring will have Huntington's?

A).0%

B).25%

C).50%

D).75%

E).100%

A.

500Once transcribed, eukaryotic RNA typically

undergoes substantial alterations that includes

A).excision of introns

B).fusion into circular forms known as plasmids

C).linkage to histone molecules

D).union with ribosomes

E).fusion with other newly transcribed mRNA

A.

100Chromosomes of diploid organisms that are NOT

involved in sex determination are called _____.

A).autosomes

B).indeterminant chromosomes

C).mitotic chromosomes

D).heterochromosomes

E).nucleosomes

A. Autosomes

200Fetal cells may be removed along with fluid from

the womb by a process known as _____.

A).karyotypingB).uterine tappingC).amniocentesisD).sonogrammingE).chorionic villus sampling

C.

300If a fragment of a chromosome breaks off and then

reattaches to the original chromosome at the same place but in the reverse direction, the resulting chromosomal abnormality is called _____.

A).a deletionB).an inversionC).a translocationD).a nondisjunctionE).polyploidy

B.

400

Which of the following descriptions best fits the class of molecules known as nucleotides?

A).a nitrogen base and a phosphate group onlyB).a nitrogen base and a five-carbon sugarC).a nitrogen base, a phosphate group, and a five-

carbon sugarD).a five-carbon sugar, a phosphate group, and a purineE).a pyrimidine, a purine, and a six-carbon sugar

C.

500The problem of replicating the lagging strand – that is,

adding bases in the 3’ 5’ direction – is solved by DNA through the use of

A).base pairing

B).replication forks

C).the unwinding enzyme, helicase

D).Okazaki fragments

E).topoisomerase

D.