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DNA Structure and Replication

DNA Structure and Replication
DNA replication in eukaryotes occurs only in

M phase
S phase
G2 phase
G1 phase

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DNA Structure and Replication
The replication of a linear DNA molecule in a eukaryotic chromosome creates a problem which is reported to be sorted out by

shortening of the double stranded replicated portion
None of these
using enzyme called telomerase
using RNA as a template

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DNA Structure and Replication
The nicks or gaps between Okazaki fragments are eventually sealed by

polymerase
DNA ligase
gyrase
RNA ligase

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DNA Structure and Replication
Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

Primers
Lagging strand
Okazaki fragments
Leading strands

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

Formation of thymine dimers
Dehydration
Depurination
Single strand break

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DNA Structure and Replication
Who's X-ray work aided Watson and Crick in their discovery of the double helix?

Leaderberg
R. Franklin
L. Pauling
W.H. Bragg

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