AIPMT PRELIMS2006Zoology-Molecular Basis of Inheritance

AIPMT PRELIMS 2006 Zoology DNA Structure MCQ Question

Type: MCQ-conceptual-Medium-Class 12

One turn of the helix in a B⁻form DNA is approximately :

A

20 nₘ

B

0.34 nₘ

C

3.4 nₘ

D

2 nₘ

Correct Answer

Option C

Detailed Explanation

The B⁻form of DNA has a helical turn of approximately 3.4 nₘ.

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