MCQ
What is the width of $\text{DNA}$ molecule?
- A$15 A^\circ$
- ✓$20 A^\circ$
- C$25 A^\circ$
- D$34 A^\circ$
✓
Answer
Correct option: B.
$20 A^\circ$
The width of the double-stranded $\text{DNA (B DNA)}$ molecule is around $2nm$ or $20$ angstroms.
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