Question

Human genome contains base pairs

• A. 2.5 million
• B. 25 million
• C. 27.2 million
• D. 3.2 billion

Answer 1

Answer: (D)

3.2 billion

There are four bases adenine (A), thymine (T), guanine (G) and cytosine (C) present in humans. Bases on opposite strands pair specifically as an A always pairs with a T, and a C always with a G. The human genome contains approximately 3.2 billion of these base pairs, which reside in the 23 pairs of chromosomes within the nucleus of all our cells.

So, the correct option is '3.2 billion'.