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Given below are statements on the struct...

Given below are statements on the structure of the DNA double helix.
1: The helix generally is wound clockwise.
2: Purines and pyrimidines are paired by different number of hydrogen bonds.
3: The two strands run in parallel polarity.
4: The sugar in DNA backbone is a pentose sugar.
Which of the above statement/s is/are NOT TRUE?

A

only 1

B

only 2

C

only 3

D

only 2 and 4

Text Solution

Verified by Experts

The correct Answer is:
C
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