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DNA Structure and Replication

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

Yeast
Bacteria
Mold
Glass crystals

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DNA Structure and Replication
DNA polymerases I also has

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

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DNA Structure and Replication
In DNA replication, one new strand is synthesized complementary to an old (parent) strand and is referred as

discontinuous
semiconservative
mutational
antiparallel

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DNA Structure and Replication
What is the approximate percentage of repetitive DNA sequences in human DNA?

40 to 50%
30 to 40%
20 to 30%
10 to 20%

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DNA Structure and Replication
The overall conclusion of the Hershey-Chase experiment was that

DNA was responsible for heredity
phage DNA was similar to bacterial DNA
the ratio of Adenine to thymine was always the same
proteins and DNA were responsible for heredity

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

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

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