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Nucleic Acids

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

adenine
guanine
thymine
cytosine

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Nucleic Acids
Which of the following is a purine?

Adenine
Cytosine
Thymine
Uracil

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Nucleic Acids
A nucleotide consists of

a sugar, a base and three phosphates
a sugar and a phosphate
paired bases
a sugar, a base and a phosphate

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

Phosphate
Uracil
Adenine
Deoxyribose

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Nucleic Acids
The most stabilizing force for nucleic acids is

Van der Waals
conformational entropy
hydrogen bonds
electrostatic bond

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Nucleic Acids
The glycosidic bonds in DNA and RNA

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

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