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Nucleic Acids

Nucleic Acids
A purine with an amine (NH2) group on the 6th carbon is

cytosine
thymine
guanine
adenine

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Nucleic Acids
The most stabilizing force for nucleic acids is

Van der Waals
hydrogen bonds
electrostatic bond
conformational entropy

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Nucleic Acids
In gel electrophoresis, what fragments will move most quickly through a gel?

None of these
Large fragments
Small fragments
Large genome

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Nucleic Acids
Because DNA is a highly charged polyanion, its stability to heat denaturation

increases with increasing salt
does not depend on hydrophobic interactions
decreases with increasing salt
is independent of G - C content

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Nucleic Acids
Nucleic acids can be analyzed experimentally by their

molecular weight
absorption of visible light
absorption of uv light
none of these

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Nucleic Acids
The sugar in RNA is __________ , the sugar in DNA is __________

ribose, uracil
deoxyribose, ribose
ribose, phosphate
ribose, deoxyribose

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