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DNA Structure and Replication

DNA Structure and Replication
Messelsen and Stahl model of replication was called

Cri du Chat
conservative replication
semi-conservative replication
dispersive replication

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DNA Structure and Replication
DNA polymerases I also has

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

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DNA Structure and Replication
Which of the following would not contain DNA?

Mold
Yeast
Bacteria
Glass crystals

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

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DNA Structure and Replication
The nicks or gaps between Okazaki fragments are eventually sealed by

gyrase
polymerase
DNA ligase
RNA ligase

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

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

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