Chapter 10

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Chapter 10

  1. 1. Mader's Concepts in Biology, First Edition Copyright © The McGraw-Hill Companies, InC) Permission required for reproduction or display. Sylvia S. Mader Chapter 10
  2. 2. Question 1 <ul><li>Which of the following is not a characteristic of a model organism for studying genetics? </li></ul><ul><li>A. small size </li></ul><ul><li>B. short generation time </li></ul><ul><li>C. produces many offspring </li></ul><ul><li>D. large genome </li></ul><ul><li>E. easy to grow and care for </li></ul>
  3. 3. Question 2 <ul><li>If you wanted to replicate the work of Frederick Griffith, which of the following organisms would you use? </li></ul><ul><li>A. Escherichia coli </li></ul><ul><li>B. Drosophila melanogaster </li></ul><ul><li>C. Streptococcus pneumoniae </li></ul><ul><li>D. Arabidopsis thaliana </li></ul><ul><li>E. Homo sapien </li></ul>
  4. 4. Question 3 <ul><li>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? </li></ul><ul><li>A. Mendel </li></ul><ul><li>B. Griffith </li></ul><ul><li>C. Hershey and Chase </li></ul><ul><li>D. Watson and Crick </li></ul><ul><li>E. Franklin </li></ul>
  5. 5. Question 4 <ul><li>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? </li></ul><ul><li>A. Mendel </li></ul><ul><li>B. Griffith </li></ul><ul><li>C. Hershey and Chase </li></ul><ul><li>D. Watson and Crick </li></ul><ul><li>E. Franklin </li></ul>
  6. 6. Question 5 <ul><li>In semiconservative DNA replication, each new double helix formed will have: </li></ul><ul><li>A. two new strands and two old strands on each helix </li></ul><ul><li>B. one new strand and one old strand in each helix </li></ul><ul><li>C. three new strands in one helix and three old strands in the second helix </li></ul><ul><li>D. two new and one old strand in one helix and two old and one new in the second helix </li></ul><ul><li>E. only new strands in each helix </li></ul>
  7. 7. Question 6 <ul><li>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? </li></ul><ul><li>A. DNA polymerase </li></ul><ul><li>B. DNA ligase </li></ul><ul><li>C. helicase </li></ul><ul><li>D. DNA primer </li></ul><ul><li>E. RNA polymerase </li></ul>
  8. 8. Question 7 <ul><li>Which of the following is not a nucleotide found in DNA? </li></ul><ul><li>A. adenine </li></ul><ul><li>B. cytosine </li></ul><ul><li>C. uracil </li></ul><ul><li>D. guanine </li></ul><ul><li>E. thymine </li></ul>
  9. 9. Question 8 <ul><li>If you were a biologist and you were studying purines, which of the following molecule(s) would you be studying? </li></ul><ul><li>A. adenine and guanine </li></ul><ul><li>B. adenine only </li></ul><ul><li>C. thymine and cytosine </li></ul><ul><li>D. uracil only </li></ul><ul><li>E. thymine only </li></ul>
  10. 10. Question 9 <ul><li>Which of the following would not be found in RNA? </li></ul><ul><li>A. adenine </li></ul><ul><li>B. uracil </li></ul><ul><li>C. cytosine </li></ul><ul><li>D. thymine </li></ul><ul><li>E. guanine </li></ul>
  11. 11. Question 10 <ul><li>Which of the following is NOT true about RNA? </li></ul><ul><li>A. RNA transfers messages from DNA to ribosomes </li></ul><ul><li>B. RNA contains the sugar ribose </li></ul><ul><li>C. RNA contains adenine, guanine, uracil, and cytosine </li></ul><ul><li>D. RNA is single stranded </li></ul><ul><li>E. RNA forms a helix </li></ul>
  12. 12. Question 11 <ul><li>Which of the following best describes the chemical composition of a nucleotide? </li></ul><ul><li>A. a nitrogen-containing base and a pentose sugar </li></ul><ul><li>B. a nitrogen-containing base, a phosphate, and a pentose sugar </li></ul><ul><li>C. a phosphate and a pentose sugar </li></ul><ul><li>D. a nitrogen-containing base, a phosphate, and a hexose sugar </li></ul><ul><li>E. a phosphate and a hexose sugar </li></ul>
  13. 13. Question 12 <ul><li>If a species contains 23% adenine in its DNA, what is the percentage of guanine it would contain? </li></ul><ul><li>A. 23% </li></ul><ul><li>B. 46% </li></ul><ul><li>C. 25% </li></ul><ul><li>D. 44% </li></ul><ul><li>E. 27% </li></ul>
  14. 14. Question 13 <ul><li>Which of the following nitrogenous bases are correctly paired in DNA? </li></ul><ul><li>A. adenine-guanine; thymine-cytosine </li></ul><ul><li>B. adenine-uracil; guanine-cytosine </li></ul><ul><li>C. adenine-thymine; guanine-cytosine </li></ul><ul><li>D. adenine-adenine; guanine-guanine </li></ul><ul><li>E. adenine-cytosine; guanine-thymine </li></ul>
  15. 15. Question 14 <ul><li>Which of the following is untrue of DNA? </li></ul><ul><li>A. it stores information </li></ul><ul><li>B. it can be replicated </li></ul><ul><li>C. it undergoes mutation </li></ul><ul><li>D. it remains constant among different species </li></ul><ul><li>E. it has variability between species </li></ul>
  16. 16. Question 15 <ul><li>The X-ray diffraction of Rosalind Franklin and Maurice Wilkins was critical evidence: </li></ul><ul><li>A. that indicated that DNA has a double helix structure </li></ul><ul><li>B. that showed that the bases of DNA are held together by hydrogen bonds </li></ul><ul><li>C. that showed that there was an equal numbers of purines and pyrimidines in DNA </li></ul><ul><li>D. showed the location of each adenine, guanine, cytosine, and thymine </li></ul><ul><li>E. revealed the structure of deoxyribose sugar </li></ul>
  17. 17. Question 16 <ul><li>The individual(s) credited with the discovery of the structure of DNA is (are): </li></ul><ul><li>A. Hershey and Chase </li></ul><ul><li>B. Watson and Crick </li></ul><ul><li>C. Edwin Chargaff </li></ul><ul><li>D. Rosalind Franklin and Maurice Wilkins </li></ul><ul><li>E. Charles Darwin and Gregor Mendel </li></ul>
  18. 18. Question 17 <ul><li>The enzyme that is used to join complementary DNA nucleotides together is: </li></ul><ul><li>A. DNA polymerase </li></ul><ul><li>B. RNA polymerase </li></ul><ul><li>C. helicase </li></ul><ul><li>D. ribozyme </li></ul><ul><li>E. lipase </li></ul>
  19. 19. Question 18 <ul><li>A biologist is studying the process of how DNA is copied. Which of the following would he or she be studying? </li></ul><ul><li>A. DNA transcription </li></ul><ul><li>B. DNA elongation </li></ul><ul><li>C. DNA translocation </li></ul><ul><li>D. DNA polymerase </li></ul><ul><li>E. DNA replication </li></ul>
  20. 20. Question 19 <ul><li>Which of the following statements about DNA replication is not correct? </li></ul><ul><li>A. unwinding of the DNA molecules occurs as hydrogen bonds break </li></ul><ul><li>B. replication occurs as each base is paired with another exactly like it </li></ul><ul><li>C. the process is known as semiconservative replication because one old strand is conserved in the new molecule </li></ul><ul><li>D. the enzyme that catalyzes DNA replication is DNA polymerase </li></ul><ul><li>E. complementary base pairs are held together with hydrogen bonds </li></ul>
  21. 21. Question 20 <ul><li>Who discovered the “one gene, one enzyme hypothesis”? </li></ul><ul><li>A. Watson and Crick </li></ul><ul><li>B. Hershey and Chase </li></ul><ul><li>C. Chargaff </li></ul><ul><li>D. Beadle and Tatum </li></ul><ul><li>E. Franklin </li></ul>

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