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DNA Structure and Replication

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

One
Two
A smear
Three

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DNA Structure and Replication
30 nm wide helix with five or six nucleosomes per helix is known as

none of these
halonoid
kinoplast
solenoid

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DNA Structure and Replication
The DNA is negatively super coiled, complexes to histone,

H-NS
HSP-1
All of these
HU

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DNA Structure and Replication
Which polymerase is active in DNA repairing

none of these
Polymerase I
Polymerase III
Polymerase II

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

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DNA Structure and Replication
Messelsen and Stahl model of replication was called

dispersive replication
conservative replication
Cri du Chat
semi-conservative replication

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