Complementary base pairing
The joining of specific nucleotides, for example, in a DNA double helix, the base adenine (A) only pairs with thymine (T) and cytosine (C) only pairs with guanine (G).
The joining of specific nucleotides, for example, in a DNA double helix, the base adenine (A) only pairs with thymine (T) and cytosine (C) only pairs with guanine (G).