Chapter 5. Bidirectional DNA Replication

Animation Activities

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Animation Activity: 5-32: Bidirectional DNA Replication

1.

DNA replication begins at:

the 5’ end of the DNA.

replication origins.

the final destination of the single RNA primer.

the last Okazaki fragment.

binding sites for specialized proteins.

Correct.

Incorrect.

Try Again.

2.

The DNA duplex is melted by specialized proteins resulting in:

a 5’ DNA overhang.

a replication bubble.

a 3’ DNA overhang.

an Okazaki fragment.

a replication origin.

Correct.

Incorrect.

Try Again.

3.

DNA synthesis proceeds:

unidirectionally from the replication origin (toward the 5’ end).

only outside the replication bubble.

with the replication forks moving in the same direction.

bidirectionally from the replication origin.

only on double-stranded DNA duplexes that are intact.

Correct.

Incorrect.

Try Again.

4.

The lagging strand is copied discontinuously from multiple primers, resulting in:

a 3’ DNA overhang.

Okazaki fragments.

a 5’ DNA overhang.

a replication bubble.

a replication origin.

Correct.

Incorrect.

Try Again.

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Chapter 5. Bidirectional DNA Replication

Introduction

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