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DNA Structure and Replication

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

All of these
pyrimidines
protamines
purines

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

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

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DNA Structure and Replication
If one cell has AT contents 40%, what will be the percentage of Guanine residue?

Guanine residue can not be calculated
15%
30%
60%

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DNA Structure and Replication
Proteins which help to open the double helix for DNA synthesis are

DNA topoisomerase
single stranded binding proteins
DNA helicases
ligase

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

kinoplast
halonoid
solenoid
none of these

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

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

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