Questions
Statement A: DNA molecule has uniform diameter throughout its length.
Statement B: A purine of one strand pairs with pyrimidine of another strand.
a
Both A and B statements are true.
b
Statement A is true and statement B is false
c
Statement A is incorrect and B is correct
d
Both statements A and B are incorrect.
detailed solution
Correct option is A
The diameter of DNA is 2 nm through out its length. It is because a purine pairs with a pyrimidine. If a purine pairs with another purine and pyrimidine with another pyrimidine, then at purine region it shows more diameter and at pyrimidine less diameter as the size of purine is more than pyrimidine.Talk to our academic expert!
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