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DNA Structure and Replication

DNA Structure and Replication
DNA polymerases I also has

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

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DNA Structure and Replication
Which histone(s) are associated with the linker DNA of a nucleosome?

Histone H3
Histone H4
Histone H1
Histones H2A and H2B

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DNA Structure and Replication
Which enzyme catalyzes the elongation of DNA molecules?

Helicase
Primase
DNA polymerase
DNA ligase

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

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DNA Structure and Replication
Number of times the two DNA strands are interwined in circular DNA and is known as

none of these
linking number
twisting number
helix frequency

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

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

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