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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
The size of a linear DNA fragment in a gel can be estimated by

the time it takes the gel to run
comparison with a molecular weight standard such as Hind III digested phage lambda
the sedimentation coefficient
fluorescence in UV light

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DNA Structure and Replication
DNA polymerases I also has

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

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

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

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DNA Structure and Replication
Who's X-ray work aided Watson and Crick in their discovery of the double helix?

Leaderberg
W.H. Bragg
R. Franklin
L. Pauling

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DNA Structure and Replication
Enzyme, responsible for proofreading base pairing is

DNA polymerase
Telomerase
DNA ligase
Primase

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