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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
linking number
twisting number
none of these

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DNA Structure and Replication
Deoxyribonucleoside triphosphates, being need in the chain termination methods are

all of these
dGTP and dCTP
dTTP
dATP

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DNA Structure and Replication
The overall conclusion of the Hershey-Chase experiment was that

the ratio of Adenine to thymine was always the same
phage DNA was similar to bacterial DNA
proteins and DNA were responsible for heredity
DNA was responsible for heredity

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DNA Structure and Replication
DNAs when charged, migrate in a gel towards the

none of these
will not migrate
negative pole
positive pole

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DNA Structure and Replication
Klenow fragment without free nucleotides exhibits

exonuclease activity
endonuclease activity
no activity
nickase activity

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

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

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