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DNA Structure and Replication

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

HSP-1
H-NS
All of these
HU

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

Two
Three
A smear
One

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DNA Structure and Replication
Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

Okazaki fragments
Lagging strand
Leading strands
Primers

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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
solenoid
kinoplast

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DNA Structure and Replication
What is the main damaging effect of UV radiation on DNA?

Depurination
Single strand break
Dehydration
Formation of thymine dimers

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DNA Structure and Replication
Which polymerase is active in DNA repairing

Polymerase III
none of these
Polymerase I
Polymerase II

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