genetics - DNA replication enzymes

Question 1

DNA topoisomerase

Accepted Answer

upstream of the replication fork, relaxes supercoiling (relieves strain) by creating small cuts

Question 2

Helicase

Accepted Answer

part of the replisome, unwinds the double helix

Question 3

Single-stranded binding proteins (SSB)

Accepted Answer

prevents re-annealing of separated strands

Question 4

Primase

Accepted Answer

synthesises RNA primers

Question 5

DNA polymerase III

Accepted Answer

synthesizes DNA

Question 6

DNA polymerase I

Accepted Answer

removes and replaces RNA primer with DNA

Question 7

DNA ligase

Accepted Answer

joins DNA segments together

Question 8

Nucleoside triphosphates

Accepted Answer

dATP, dGTP, dCTP, dTTP

Question 9

Replisome

Accepted Answer

the DNA molecule and all of its associated enzymes/proteins required for replication

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