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Nucleic Acids

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

Uracil
Deoxyribose
Adenine
Phosphate

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Nucleic Acids
A nucleotide consists of

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

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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
increases with increasing salt
is independent of G - C content

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

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

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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

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

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