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Which one of the following nucleic acids has a left handed helix?

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in Biochemistry by (89.2k points)
Which one of the following nucleic acids has a left handed helix?

(a) M-RNA

(b) T-RNA

(c) A-DNA

(d) Z-DNA

This question was posed to me in a national level competition.

The origin of the question is Nucleic Acid Structure in portion Nucleotides and Nucleic Acids of Biochemistry

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The correct answer is (d) Z-DNA

To explain I would say: Z-DNA is left handed and B-DNA is right handed helix.

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