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Chapter 10

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  • 1.Mader's Concepts in Biology, First Edition CopyrightThe McGraw-Hill Companies, InC) Permission required for reproduction or display. Sylvia S. Mader Chapter 10

2. Question 1

  • Which of the following is not a characteristic of a model organism for studying genetics?
  • A. small size
  • B. short generation time
  • C. produces many offspring
  • D. large genome
  • E. easy to grow and care for

3. Question 2

  • If you wanted to replicate the work of Frederick Griffith, which of the following organisms would you use?
  • A. Escherichia coli
  • B. Drosophila melanogaster
  • C. Streptococcus pneumoniae
  • D. Arabidopsis thaliana
  • E. Homo sapien

4. Question 3

  • Which of the following scientist(s) showed that genetic information could be transferred from one bacterium to another, thus transforming one bacteria strain into another?
  • A. Mendel
  • B. Griffith
  • C. Hershey and Chase
  • D. Watson and Crick
  • E. Franklin

5. Question 4

  • Which of the following scientist(s) used viruses to show that it was DNA and not a protein which directed the actions of cells and viruses?
  • A. Mendel
  • B. Griffith
  • C. Hershey and Chase
  • D. Watson and Crick
  • E. Franklin

6. Question 5

  • In semiconservative DNA replication, each new double helix formed will have:
  • A. two new strands and two old strands on each helix
  • B. one new strand and one old strand in each helix
  • C. three new strands in one helix and three old strands in the second helix
  • D. two new and one old strand in one helix and two old and one new in the second helix
  • E. only new strands in each helix

7. Question 6

  • A biochemist is studying the enzyme which is responsible for unzipping and unwinding the original molecule of DNA. Which of the following enzymes would he or she be studying?
  • A. DNA polymerase
  • B. DNA ligase
  • C. helicase
  • D. DNA primer
  • E. RNA polymerase

8. Question 7

  • Which of the following is not a nucleotide found in DNA?
  • A. adenine
  • B. cytosine
  • C. uracil
  • D. guanine
  • E. thymine

9. Question 8

  • If you were a biologist and you were studying purines, which of the following molecule(s) would you be studying?
  • A. adenine and guanine
  • B. adenine only
  • C. thymine and cytosine
  • D. uracil only
  • E. thymine only

10. Question 9

  • Which of the following would not be found in RNA?
  • A. adenine
  • B. uracil
  • C. cytosine
  • D. thymine
  • E. guanine

11. Question 10

  • Which of the following is NOT true about RNA?
  • A. RNA transfers messages from DNA to ribosomes
  • B. RNA contains the sugar ribose
  • C. RNA contains adenine, guanine, uracil, and cytosine
  • D. RNA is single stranded
  • E. RNA forms a helix

12. Question 11

  • Which of the following best describes the chemical composition of a nucleotide?
  • A. a nitrogen-containing base and a pentose sugar
  • B. a nitrogen-containing base, a phosphate, and a pentose sugar
  • C. a phosphate and a pentose sugar
  • D. a nitrogen-containing base, a phosphate, and a hexose sugar
  • E. a phosphate and a hexose sugar

13. Question 12

  • If a species contains 23% adenine in its DNA, what is the percentage of guanine it would contain?
  • A. 23%
  • B. 46%
  • C. 25%
  • D. 44%
  • E. 27%

14. Question 13

  • Which of the following nitrogenous bases are correctly paired in DNA?
  • A. adenine-guanine; thymine-cytosine
  • B. adenine-uracil; guanine-cytosine
  • C. adenine-thymine; guanine-cytosine
  • D. adenine-adenine; guanine-guanine
  • E. adenine-cytosine; guanine-thymine

15. Question 14

  • Which of the following is untrue of DNA?
  • A. it stores information
  • B. it can be replicated
  • C. it undergoes mutation
  • D. it remains constant among different species
  • E. it has variability between species

16. Question 15

  • The X-ray diffraction of Rosalind Franklin and Maurice Wilkins was critical evidence:
  • A. that indicated that DNA has a double helix structure
  • B. that showed that the bases of DNA are held together by hydrogen bonds
  • C. that showed that there was an equal numbers of purines and pyrimidines in DNA
  • D. showed the location of each adenine, guanine, cytosine, and thymine
  • E. revealed the structure of deoxyribose sugar

17. Question 16

  • The individual(s) credited with the discovery of the structure of DNA is (are):
  • A. Hershey and Chase
  • B. Watson and Crick
  • C. Edwin Chargaff
  • D. Rosalind Franklin and Maurice Wilkins
  • E. Charles Darwin and Gregor Mendel

18. Question 17

  • The enzyme that is used to join complementary DNA nucleotides together is:
  • A. DNA polymerase
  • B. RNA polymerase
  • C. helicase
  • D. ribozyme
  • E. lipase

19. Question 18

  • A biologist is studying the process of how DNA is copied. Which of the following would he or she be studying?
  • A. DNA transcription
  • B. DNA elongation
  • C. DNA translocation
  • D. DNA polymerase
  • E. DNA replication

20. Question 19

  • Which of the following statements about DNA replication is not correct?
  • A. unwinding of the DNA molecules occurs as hydrogen bonds break
  • B. replication occurs as each base is paired with another exactly like it
  • C. the process is known as semiconservative replication because one old strand is conserved in the new molecule
  • D. the enzyme that catalyzes DNA replication is DNA polymerase
  • E. complementary base pairs are held together with hydrogen bonds

21. Question 20

  • Who discovered the one gene, one enzyme hypothesis?
  • A. Watson and Crick
  • B. Hershey and Chase
  • C. Chargaff
  • D. Beadle and Tatum
  • E. Franklin

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