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DNA Structure and Replication

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

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

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DNA Structure and Replication
Which is the largest among the followings?

Phosphate
Nitrogenous base
Nucleotide
Carbon

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DNA Structure and Replication
Which DNA polymerase removes RNA primers in DNA synthesis?

none of these
Polymerase I
Polymerase III
Polymerase II

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DNA Structure and Replication
What does ligase do during replication of DNA?

Joins nicks in DNA strands
Makes copies of mRNA from DNA
Synthesizes the lagging strand
Digests mRNA when it is no longer needed

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DNA Structure and Replication
In DNA replication, one new strand is synthesized complementary to an old (parent) strand and is referred as

antiparallel
semiconservative
discontinuous
mutational

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

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

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