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Total number of base pairs in one complete turn of the helix of the DNA is :
Option: 1
5 base pairs
Option: 2
10 base pairs
Option: 3
15 base pairs
Option: 4
20 base pairs
Answers (1)
As we have already discussed in Salient Features of Double-Helix Structure of DNA -
The pitch of the helix is 3.4 nm (a nanometre is one-billionth of a metre, that is 10-9 m) and there is roughly 10 bp in each turn.
Hence, the correct option is (b).
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