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DNA Structure and Replication

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

DNA polymerase
Primase
DNA ligase
Helicase

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DNA Structure and Replication
DNA replication in eukaryotes occurs only in

M phase
G1 phase
S phase
G2 phase

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DNA Structure and Replication
Which polymerase is active in DNA repairing

Polymerase II
Polymerase III
Polymerase I
none of these

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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 overall conclusion of the Hershey-Chase experiment was that

the ratio of Adenine to thymine was always the same
proteins and DNA were responsible for heredity
phage DNA was similar to bacterial DNA
DNA was responsible for heredity

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DNA Structure and Replication
The role of primase is to

cleave and unwinds short sections of DNA ahead of the replication fork
synthesize an RNA primer to begin the elongation process
dismantle RNA primer
proofread base pairing

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