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Nucleic Acids

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

Adenine
Thymine
Cytosine
Uracil

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Nucleic Acids
Nucleic acids can be analyzed experimentally by their

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

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Nucleic Acids
The most stabilizing force for nucleic acids is

electrostatic bond
Van der Waals
conformational entropy
hydrogen bonds

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

DNA
RNA
mRNA
rDNA

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Nucleic Acids
Which of the following is a purine?

Thymine
Adenine
Uracil
Cytosine

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Nucleic Acids
Nucleoside is a pyrimidine or purine base

ionically bonded to a sugar
covalently bonded to a sugar
None of these
hydrogen bonded to a sugar

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