6 Why is DNA replication a challenging process? (2 p) a. DNA strands must be sep

Question

6 Why is DNA replication a challenging process? (2 p) a. DNA strands must be separated b. New IDNA i is always synthesized from the 5"3 direction but the two template strands run in opposite directions c. The cell must guard against replication errors d. a and b only e. All of the above 7. What is the direction of synthesis of a DNA strand? (2 pt) a. 5' end to the 3' end on both strands b. 3' end to the 5' end on both strands e. 5' end to the 3' end on one strand and from the 3' end to the 5' end on the other strand d. Phosphate to Purine base e. None of the above 8. An important process in the synthesis of new DNA is(2 pt) a. proofreading and repair. b. unwinding of the double helix. c. protection of single-stranded regions from nuclease action. d. a and b only e. All of the above 9. Which of the following is not a function of DNA Polymerase II1? (2 pt) a. Polymerization. b. Ligating the final products. c. Proofreading. d. Clamping on to the template. e. All of the above 10. Which enzyme below is responsible for the bulk of DNA synthesis during replication? (2 pt) a. DNA Polymerase I b. DNA Polymerase II c. DNA Polymerase III d. DNA Polymerases IV e. All of the above

Explanation / Answer

6. Correct answer:- (b) new DNA is always synthesized from 5' to 3' direction but two template strands run in opposite directions.

7. Correct answer :- (c) 5' end to one strand and from 3' end on other strand

8. Correct answer:- (d) a and b only

9. Correct answer:- (d) clamping on the template

10. Correct answer:- (c) DNA polymerase III

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