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DNA Structure and Replication

DNA Structure and Replication
A cesium chloride will separate DNA molecules by

absorption
resorption
adhesion
density

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DNA Structure and Replication
The site on a bacterial chromosome that marks the initiation point for chromosome replication is called

Ori
an initiation codon
a promoter
Pro

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DNA Structure and Replication
For the DNA replication in eukaryotes, the cell cycle consists of

G2 and M phases
G1,S, G2 and M phases
S, G2 and M phases
G1, G2 and M phases

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DNA Structure and Replication
In the study of one experiment it was found that the value of Tm for DNA is = 40° C. If the cell has 20% GC at the above Tm, then what will be value of 'Tm' if the GC% increases to 60%?

Remains same
Can not be compared
Increases
Decreases

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

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

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DNA Structure and Replication
In a cesium chloride gradient, DNA labeled with 15N and centrifuged will form a band

above DNA containing 14N
with 14N-containing DNA
below DNA containing 14N
all of these

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