Question

revision

1. complementary base pairing

adenine (a) pairs with
cytosine (c) pairs with

Explanation:

In DNA, complementary base - pairing rules state that adenine (A) forms hydrogen bonds with thymine (T) and cytosine (C) forms hydrogen bonds with guanine (G). This is a fundamental concept in molecular biology related to the structure of DNA.

Answer:

Adenine (A) pairs with thymine (T). Cytosine (C) pairs with guanine (G).