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Nucleic Acids

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

guanine
adenine
thymine
cytosine

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Nucleic Acids
Which pyrimidine base contains an amino group at carbon 4?

Thymine
Uracil
Cytosine
Adenine

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Nucleic Acids
Nucleic acids can be analyzed experimentally by their

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

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

Adenine
Deoxyribose
Phosphate
Uracil

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

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

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Nucleic Acids
The glycosidic bonds in DNA and RNA

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

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