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DNA Structure and Replication

DNA Structure and Replication
Which polymerase is active in DNA repairing

Polymerase III
Polymerase II
Polymerase I
none of these

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DNA Structure and Replication
How does ethidium bromide interact with DNA?

It binds to phosphate
It intercalates between bases
It binds to adenine
It does not interact

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DNA Structure and Replication
What bands will be observed in a cesium chloride gradient after two rounds of replication?

One light and one medium band
One light, one medium and one heavy band
One medium and one heavy band
One medium band

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DNA Structure and Replication
Okazaki fragments occur on the __________ and are bonded together by __________

mRNA, anticodons
tRNA, polymerase
Lagging strand, ligase
Leading strand, polymerase

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DNA Structure and Replication
The replication of a linear DNA molecule in a eukaryotic chromosome creates a problem which is reported to be sorted out by

using RNA as a template
None of these
using enzyme called telomerase
shortening of the double stranded replicated portion

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DNA Structure and Replication
DNA replication in eukaryotes occurs only in

G1 phase
M phase
S phase
G2 phase

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