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DNA Structure and Replication

DNA Structure and Replication
In an agarose gel, DNA is moving from

A to B
cathode to anode
anode to cathode
left to right

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DNA Structure and Replication
Which of the following is an active site on its single polypeptide chain for DNA Polymerase I?

5' → 3' polymerase
5' → 3' exonuclease
All of these
3' → 5' exonuclease

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

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

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DNA Structure and Replication
What is the IUPAC code for an A, C, T ambiguity in a nucleic acid sequence?

None of these
B
S
H

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DNA Structure and Replication
During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of

high temperature and Mg++
high temperature and Ca++
low temperature and Mg++
low temperature and Ca++

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DNA Structure and Replication
The site on a bacterial chromosome that marks the initiation point for chromosome replication is called

an initiation codon
a promoter
Pro
Ori

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