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DNA Structure and Replication

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

helix frequency
twisting number
none of these
linking number

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DNA Structure and Replication
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

A smear
Two
Three
One

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DNA Structure and Replication
The role of primase is to

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

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DNA Structure and Replication
DNA segments capable of moving from one place in the genome to another is known as

moving elements
retrovirus
transposons
introns

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

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

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DNA Structure and Replication
DNA can be sequenced by the

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

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