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DNA Structure and Replication

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

DNA ligase
DNA polymerase
Telomerase
Primase

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DNA Structure and Replication
DNA polymerases I also has

5'-3' exonuclease activity
both (a) and (b)
3'-5'exonuclease activity
5'-3' endonuclease activity

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DNA Structure and Replication
In the study of one experiment it was found that the value of Tm for DNA is = 40° C. If the cell has 20% GC at the above Tm, then what will be value of 'Tm' if the GC% increases to 60%?

Decreases
Can not be compared
Increases
Remains same

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DNA Structure and Replication
DNA replication in eukaryotes occurs only in

M phase
S phase
G1 phase
G2 phase

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DNA Structure and Replication
What is the name given to the points at which a DNA helix is unwound and new strands develop?

Replication forks
Replication origins
Okazaki fragments
Leading strands

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DNA Structure and Replication
DNA replication results in

two DNA molecules such that each one contains a strand of the original
one new molecule of RNA
one new DNA molecules 1 old molecule
two completely new DNA molecules

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