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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
none of these
twisting number
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 DNA polymerase in bacteria, responsible for DNA synthesis is

Polymerase III
Polymerase II
Polymerase I
all of these

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DNA Structure and Replication
Which of the following would not contain DNA?

Glass crystals
Yeast
Mold
Bacteria

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

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

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DNA Structure and Replication
In sperm heads, DNA is particularly highly condensed and the histones are replaced with small basic protein called

protamines
All of these
pyrimidines
purines

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