Determine whether each of the following is a characteristic of DNA polymerase, R

Question

Determine whether each of the following is a characteristic of DNA polymerase, RNA polymerase, both or neither.

1. Dependent on a RNA template

2. Polymerizes in the 5’ 3’ direction

3. Requires deoxynucleotide triphosphate

4. Dependent on a DNA template

5. Has 3’ 5’ exonuclease proofreading activity

6. Uses adenine as a nitrogenous base

7. Uses thymine as a nitrogenous base

8. Catalyzes phosphodiester bond formation

9. Requires a RNA primer

A. Neither

B. RNA polymerase only

C. DNA polymerase only

D. Both

Explanation / Answer

1. Dependent on a RNA template: : Neither

2. Polymerizes in the 5’ 3’ direction : Both

3. Requires deoxynucleotide triphosphate : DNA polymerase only

4. Dependent on a DNA template :Both

5. Has 3’ 5’ exonuclease proofreading activity :DNA polymerase only

6. Uses adenine as a nitrogenous base :Both

7. Uses thymine as a nitrogenous base:DNA polymerase only

8. Catalyzes phosphodiester bond formation :Both

9. Requires a RNA primer :DNA polymerase only

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