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DNA Structure and Replication

DNA Structure and Replication
Which DNA polymerase removes RNA primers in DNA synthesis?

Polymerase I
Polymerase III
none of these
Polymerase II

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DNA Structure and Replication
E.coli DNA polymerases II and III lack

partially 5' → 3' exonuclease activity
5' → 3' endonuclease activity
5' → 3' exonuclease activity
partially 5' → 3' endonuclease activity

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DNA Structure and Replication
DNA can be sequenced by the

both (a) and (b)
physical method
chemical method
chain termination procedure

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DNA Structure and Replication
Which of the following is an active site on its single polypeptide chain for DNA Polymerase I?

5' → 3' polymerase
All of these
3' → 5' exonuclease
5' → 3' exonuclease

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DNA Structure and Replication
Number of times the two DNA strands are interwined in circular DNA and is known as

none of these
twisting number
linking number
helix frequency

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DNA Structure and Replication
What is the name given to the points at which a DNA helix is unwound and new strands develop?

Leading strands
Okazaki fragments
Replication origins
Replication forks

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