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DNA Structure and Replication

DNA Structure and Replication
In DNA, guanine pairs with

Thymine
Adenine
Cytosine
Uracil

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DNA Structure and Replication
Telomeres are usually rich in which nucleotide?

Adenine
Cytosine
Guanine
Thymine

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DNA Structure and Replication
Which polymerase is active in DNA repairing

none of these
Polymerase I
Polymerase III
Polymerase II

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DNA Structure and Replication
The nucleosome consists of histone

hexamer and 146 bp of DNA
None of these
octamer and 146 bp of DNA
tetramer and 146 bp of DNA

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DNA Structure and Replication
Enzymes, responsible for unraveling short segments of DNA is

DNA polymerase
primase
DNA ligase
helicase

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

Dehydration
Depurination
Formation of thymine dimers
Single strand break

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