Question #56c75

1 Answer
Dr Birendra Kumar Mishra
Sep 18, 2017

Because two complementary strands of DNA arranged in opposite direction.

Explanation:

The two complementary strands of the DNA are arranged in the opposite 5'-3' direction. It means that one strand starts with third carbon of the pentose sugar, while the complementary strand starts with fifth carbon of the pentose sugar. It relax the torsion between the two complementary strands. It is called the anti-parallel of the two strands. Thank you

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