Question

Which describes the correct pairing of DNA bases?

A. T with A, and C with G
B. T with C, and A with G
C. T with T, and C with C
D. T with G, and A with C

Answer 1

The correct pairings of DNA are T with A and C with G

Answer 2

The correct answer would be A. T with A, and C with G

It can be explained with the help of complementary base pairing.

In DNA, thymine (T) always forms a base pair with adenine (A) and cytosine (C) always base pairs with guanine (G) .

There are two hydrogen bonds present in between A and T and three hydrogen bonds in between G and C.