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DNA Structure and Replication

DNA Structure and Replication
DNA segments capable of moving from one place in the genome to another is known as

moving elements
introns
transposons
retrovirus

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DNA Structure and Replication
Replication in E. coli is initiated by the generation of short RNA primers using

RNA polymerase
primase
both (a) and (b)
reverse transcriptase

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

Dehydration
Formation of thymine dimers
Single strand break
Depurination

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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
If one cell has AT contents 40%, what will be the percentage of Guanine residue?

15%
Guanine residue can not be calculated
30%
60%

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DNA Structure and Replication
Which enzyme catalyzes the elongation of DNA molecules?

DNA polymerase
Helicase
DNA ligase
Primase

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