DNA Polymerases Flashcards
1
Q
DNA Polymerase I
A
Removes RNA primer, replaces primer with DNA, repairs DNA, proofreads DNA in both 3’->5’ and 5’->3’ directions
2
Q
DNA Polymerase II
A
Repairs DNA
3
Q
DNA Polymerase III
A
Synthesizes new DNA and proofreads DNA via 3’->5’ exonuclease activity
4
Q
DNA polymerase α
A
Initiates DNA Synthesis
5
Q
DNA polymerase β
A
Repairs DNA
6
Q
DNA polymerase γ
A
Replicates mitochondrial DNA
7
Q
DNA polymerase δ
A
Synthesizes new DNA and replaces RNA primer with DNA
8
Q
DNA polymerase ε
A
Extends leading strand and repairs DNA
9
Q
Reverse Transcriptase
A
Synthesizes DNA from an RNA template; used by retroviruses
10
Q
Telomerase
A
Extends telomeres; stem cells, cancer cells
