Question

Which describes the correct pairing of DNA bases?

O A. T with C, and A with G
OB. T with T, and C with C
O C. T with A, and C with G
O D. T with G, and A with C

Answer 1

`\boxed{C. \: T \: with \: A, \: and \: C \: with \: G}`

Step-by-step explanation:

In dsDNA the bases in the two strands are paired through hydrogen bonds forming base pairs (bp). Adenine forms two H-bonds with thymine from opposite strand and vice-versa. Similarly, guanine is bonded with cytosine with three H-bonds. As a result, always a purine comes opposite to a pyrimidine.

A - T & G - C