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DNA Structure and Replication

DNA Structure and Replication
When DNA polymerase is in contact with guanine in the parental strand, what does it add to the growing daughter strand?

Phosphate
Uracil
Guanine
Cytosine

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DNA Structure and Replication
The DNA polymerase in bacteria, responsible for DNA synthesis is

all of these
Polymerase III
Polymerase II
Polymerase I

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DNA Structure and Replication
The nicks or gaps between Okazaki fragments are eventually sealed by

DNA ligase
gyrase
RNA ligase
polymerase

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DNA Structure and Replication
In an agarose gel, DNA is moving from

left to right
cathode to anode
anode to cathode
A to B

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DNA Structure and Replication
The role of primase is to

cleave and unwinds short sections of DNA ahead of the replication fork
proofread base pairing
dismantle RNA primer
synthesize an RNA primer to begin the elongation process

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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?

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

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