Question

Distance between two successive base pairs in DNA is:

• A. 0.34 nm
• B. 0.34 A
• C. 3.4 nm
• D. 34 A

Answer 1

The correct option is A

0.34 nm

The correct option is A.

The explanation for the correct option:

1. DNA is an organic chemical, which comprises instructions and genetic information for the synthesis of protein.
2. It is found in the majority of the cells in every organism.
3. It is a double helix.
4. The bases present in the DNA are adenine, thymine, guanine, and cytosine.
5. Adenine pairs with thymine and guanine with cytosine.
6. The normal distance between the two successive base pairs within a DNA is 3.4 Angstroms or 0.34 nm.

Final answer: 0.34 nm is the distance between two successive base pairs within a DNA