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DNA Structure and Replication

DNA Structure and Replication
What is the range of melting point temperatures (Tm) for most DNA molecules?

70 to 90°C
50 to 60°C
60 to 80°C
80 to l00°C

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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
W.H. Bragg
R. Franklin
L. Pauling

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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
cleave and unwinds short sections of DNA ahead of the replication fork
dismantle RNA primer

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DNA Structure and Replication
DNA can be sequenced by the

physical method
chain termination procedure
chemical method
both (a) and (b)

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DNA Structure and Replication
The DNA is negatively super coiled, complexes to histone,

H-NS
HU
All of these
HSP-1

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DNA Structure and Replication
Which of these drugs bind to DNA and cuts it, producing hydroxyl radicals?

Tunicamycin
Erythromycin
Bleomycin
All of these

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