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Nucleic Acids

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

thymine
cytosine
guanine
adenine

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

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

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Nucleic Acids
The glycosidic bonds in DNA and RNA

can be hydrolyzed by OH- ion
connect the sugar to the base
are free to rotate over about 180°
stabilize Watson-Crick H-bonds

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Nucleic Acids
Which of the following is found on RNA but not DNA?

Adenine
Uracil
Phosphate
Deoxyribose

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Nucleic Acids
A five carbon sugar lacking a hydrogen at the number 2 carbon is found in

DNA
rDNA
mRNA
RNA

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

Large genome
None of these
Large fragments
Small fragments

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