Mastering Biology Ch 16
| 1. | The action of helicase creates _____ | replication forks and replication bubbles | |
| 2. | After DNA replication is completed, _____. | each new DNA double helix consists of one old DNA strand and one new DNA strand | |
| 3. | After replication is complete, the new DNAs, called _____, are identical to each other. | Daughter DNA | |
| 4. | During DNA replication, an open section of DNA, in which a DNA polymerase can replicate DNA, is called the _____. | replication fork | |
| 5. | The enzyme that can replicate DNA is called _____. | DNA polymerase | |
| 6. | The first step in the replication of DNA is catalyzed by _____. | helicase | |
| 7. | In a DNA double helix an adenine of one strand always pairs with a(n) _____ of the complementary strand, and a guanine of one strand always pairs with a(n) _____ of the complementary strand. | thymine … cytosine | |
| 8. | The new DNA strand that grows continuously in the 5′ to 3′ direction is called the _____. | leading strand | |
| 9. | Okazaki Fragments | are the short sections of DNA that are synthesized on the lagging strand of the replicating DNA | |
| 10. | An old DNA strand is used as a _____ for the assembly of a new DNA strand. | template | |
| 11. | Short segments of newly synthesized DNA are joined into a continuous strand by _____. | ligase | |
| 12. | The synthesis of a new strand begins with the synthesis of a(n) _____. | RNA primer complementary to a preexisting DNA strand | |
| 13. | Which of these is responsible for catalyzing the formation of an RNA primer? | Primase catalyzes the formation of an RNA primer. | |
| 14. | Why is the new DNA strand complementary to the 3′ to 5′ strands assembled in short segments? | DNA polymerase can assemble DNA only in the 5′ to 3′ direction |
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