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Nucleic Acids

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
The unfavourable free energy associated with not satisfying a hydrogen bond after formation of the double helix is approximately

25 kJ/mol
10 kJ/mol
20 kJ/mol
30 kJ/mol

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

Small fragments
None of these
Large fragments
Large genome

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Nucleic Acids
A nucleotide consists of

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

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Nucleic Acids
Which of the following is a purine?

Uracil
Cytosine
Thymine
Adenine

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

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

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