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DNA Structure and Replication

DNA Structure and Replication
What is the exact name of the classical Watson-Crick double helix DNA?

A-DNA
X-DNA
B-DNA
Z-DNA

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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

pyrimidines
purines
All of these
protamines

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DNA Structure and Replication
Which DNA polymerase removes RNA primers in DNA synthesis?

Polymerase II
Polymerase III
none of these
Polymerase I

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

Bleomycin
Erythromycin
All of these
Tunicamycin

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DNA Structure and Replication
An important difference between eukaryotic and prokaryotic DNA replication is

eukaryotic DNA polymerases are faster
multiple origins of replication in eukaryotes
RNA primers are not required in eukaryotes
more DNA polymerases are found in eukaryotes

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

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

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