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DNA Structure and Replication

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

resorption
density
absorption
adhesion

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DNA Structure and Replication
When DNA polymerase is in contact with guanine in the parental strand, what does it add to the growing daughter strand?

Guanine
Uracil
Phosphate
Cytosine

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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
Messelsen and Stahl model of replication was called

conservative replication
semi-conservative replication
dispersive replication
Cri du Chat

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

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

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DNA Structure and Replication
What is the range of melting point temperatures (Tm) for most DNA molecules?

80 to l00°C
60 to 80°C
50 to 60°C
70 to 90°C

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