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NEETZoologyMolecular Basis of Inheritance

Select the incorrect statement for the given figure.

Options

  1. AThe two chains are coiled in a right-handed fashion.
  2. BThe pitch of the helix is 3.4 nm
  3. CThere are roughly 10 bp in each turn.
  4. DNone of the above

Correct answer

D. None of the above

Step-by-step solution

The salient features of the Double-helix structure of DNA are as follows: (iv) The two chains are coiled in a right-handed fashion. The pitch of the helix is 3.4 nm (a nanometre is one billionth of a metre, that is 10-9 m) and there are roughly 10 bp in each turn. Consequently, the distance between a bp in a helix is approximately 0.34 nm.

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