Written by Yvette Tran (PEACE Officer Intern)

Double helical DNA-RNA hybrids and double-stranded RNA chains often assume an:

a.     A conformation

b.     B conformation

c.      Z conformation

d.     All of the above

e.     None of the above

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Explanation: The answer is A. The A conformation is the preferred and most stable form for RNA chains and RNA-DNA hybrids with its shorter distance between base pairs. The B conformation is found within humans and is the most common form for DNA.

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