Q. The number of hydrogen bonds between adenine and thymine in a DNA molecule is

A) Two
B) Three
C) Four
D) Eight
Explanation

Adenine (A) is complementary to thymine (T) and guanine (G) is complementary to cytosine (C). There are two hydrogen bonds between A and T while three hydrogen bonds between guanine (G) and cytosine (C).

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.