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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
helix frequency
linking number
none of these

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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

discontinuous
semiconservative
antiparallel
mutational

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DNA Structure and Replication
What is the main damaging effect of UV radiation on DNA?

Formation of thymine dimers
Depurination
Dehydration
Single strand break

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DNA Structure and Replication
An enzyme that recognizes foreign DNA, and results in a cut in that DNA is called

transposase
restriction endonuclease
reverse transcriptase
helicase

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

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

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DNA Structure and Replication
Reverse transcriptase produces

RNA from DNA
RNA from RNA
DNA from RNA
DNA from peptides

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