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DNA Structure and Replication

DNA Structure and Replication
DNAs when charged, migrate in a gel towards the

none of these
negative pole
will not migrate
positive pole

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DNA Structure and Replication
DNA polymerases I also has

3'-5'exonuclease activity
both (a) and (b)
5'-3' endonuclease activity
5'-3' exonuclease activity

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

B
H
None of these
S

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DNA Structure and Replication
Replication in E. coli is initiated by the generation of short RNA primers using

both (a) and (b)
RNA polymerase
reverse transcriptase
primase

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DNA Structure and Replication
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

A smear
Three
One
Two

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

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

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