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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

twisting number
none of these
helix frequency
linking number

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DNA Structure and Replication
TM refers to the temperature at which

membranes are 50% fluid
50% of a DNA molecule is denatured
All of these
50% of a protein molecules are denatured

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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
60%
30%
15%

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

HU
HSP-1
All of these
H-NS

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

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

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DNA Structure and Replication
What is the approximate size (in kb) of the E. coli genome?

4500 kilobase
6500 kilobase
5500 kilobase
3000 kilobase

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