Chapter 5. Leading Strand and Lagging Strand DNA Synthesis

Animation Activities

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Animation Activity: 5-29: Leading Strand and Lagging Strand DNA Synthesis

1.

DNA is replicated by ________ synthesis of a leading strand and ________ synthesis of a lagging strand.

continuous; continuous

discontinuous; continuous

continuous; discontinuous

The type of synthesis of the leading and lagging strands can only be determined if you know the temperature at which the DNA synthesis is being carried out.

discontinuous; discontinuous

Correct.

Incorrect.

Try Again.

2.

The DNA polymerase dimer moves:

with the replication fork.

away from the replication fork.

in a way that discontinuously synthesizes the leading strand.

in a 3′-5′ direction.

None of the above is correct.

Correct.

Incorrect.

Try Again.

3.

DNA polymerase elongates the lagging strand:

in a direction opposite the replication fork.

in a direction toward the replication fork.

in a way that continuously synthesizes the lagging strand.

in a 3′-5′ direction.

None of the above is correct.

Correct.

Incorrect.

Try Again.

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Chapter 5. Leading Strand and Lagging Strand DNA Synthesis

Introduction

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