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DNA Structure and Replication

DNA Structure and Replication
A cesium chloride will separate DNA molecules by

density
adhesion
absorption
resorption

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DNA Structure and Replication
Reverse transcriptase produces

RNA from DNA
DNA from RNA
DNA from peptides
RNA from RNA

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

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

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

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

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DNA Structure and Replication
What does ligase do during replication of DNA?

Digests mRNA when it is no longer needed
Joins nicks in DNA strands
Makes copies of mRNA from DNA
Synthesizes the lagging strand

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

Primase
DNA polymerase
DNA ligase
Helicase

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