NEET Biology question

Which is wrong about nucleic acids?

(A)DNA is single stranded
(B)RNA is double stranded occasionally in some viruses
(C)Length of one helix is 45 Å in B-DNACorrect
(D)One turn of Z-DNA has 12 bases

Answer: (C)

Solution

B-DNA is double-stranded (not statement a's concern) and one complete turn of its helix spans about 34 Å, not 45 Å, making statement (c) the incorrect one. DNA is normally

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Question ID VK-112514