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How Nucleotides Are Added in DNA Replication

View the animation below, then complete the quiz to test your knowledge of the concept.

1Arrange the following proteins in the proper order in which they participate in DNA replication.

1 = Primase
2 = Helicase
3 = Single-strand binding proteins
4 = DNA polymerase I
A)1, 2, 3, 4
B)1, 3, 2, 4
C)2, 3, 1, 4
D)2, 3, 4, 1
E)2, 4, 3, 1

2Which of the following is required to replicate the lagging strand of DNA?
A)Okazaki fragments
C)DNA ligase
D)A and B
E)A, B and C

3RNA primers are removed by the action of the enzyme
A)DNA pol III.
B)DNA pol I.

4DNA pol III can initiate DNA synthesis.

5To allow simultaneous replication of the leading and lagging strands by dimeric DNA pol III, the DNA of the leading strand has to be folded.

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