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DNA Structure and Replication

DNA Structure and Replication
The accepted hypothesis for DNA replication is

evolutionary theory
dispersive theory
conservative theory
semi-conservative theory

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DNA Structure and Replication
What does ligase do during replication of DNA?

Makes copies of mRNA from DNA
Digests mRNA when it is no longer needed
Joins nicks in DNA strands
Synthesizes the lagging strand

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DNA Structure and Replication
In sperm heads, DNA is particularly highly condensed and the histones are replaced with small basic protein called

protamines
All of these
pyrimidines
purines

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DNA Structure and Replication
Which is the largest among the followings?

Phosphate
Carbon
Nitrogenous base
Nucleotide

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DNA Structure and Replication
The role of primase is to

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

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DNA Structure and Replication
The DNA polymerase in bacteria, responsible for DNA synthesis is

Polymerase II
Polymerase III
all of these
Polymerase I

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