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DNA Structure and Replication

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
30%
15%

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

Depurination
Single strand break
Dehydration
Formation of thymine dimers

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DNA Structure and Replication
Enzyme, responsible for proofreading base pairing is

DNA polymerase
Primase
Telomerase
DNA ligase

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DNA Structure and Replication
The packing ratio of nucleosomes is about

6
9
8
7

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DNA Structure and Replication
First evident that DNA is genetic material comes from the experiment of Griffith is

transduction
transformation
translation
replication

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

restriction endonuclease
transposase
reverse transcriptase
helicase

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