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DNA Structure and Replication

DNA Structure and Replication
DNA replication takes place in which direction?

Randomly
3' to 5'
5 'to 3'
Vary from organism to organism

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

Three
Two
One
A smear

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DNA Structure and Replication
DNA can be sequenced by the

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

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DNA Structure and Replication
In a cesium chloride gradient, DNA labeled with 15N and centrifuged will form a band

below DNA containing 14N
above DNA containing 14N
all of these
with 14N-containing DNA

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DNA Structure and Replication
What is the approximate percentage of repetitive DNA sequences in human DNA?

10 to 20%
20 to 30%
40 to 50%
30 to 40%

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DNA Structure and Replication
DNA replication results in

two completely new DNA molecules
one new DNA molecules 1 old molecule
two DNA molecules such that each one contains a strand of the original
one new molecule of RNA

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