Question

What is meant by complementary base pairing?

Short answer

Each base on one strand of a polynucleotide strand creates a hydrogen bond with a particular base on the opposing $\mathrm{DNA}$ strand. Only adenine and guanine bind to thymine and cytosine, respectively. Complementary base paring is the term for this.

Step-by-step solution

    Given Information

The two nitrogen-containing portions of a nucleotide that link together to connect $\mathrm{DNA}$or $\mathrm{RNA}$strands are known as complementary bases. $\mathrm{DNA}$and$\mathrm{RNA}$ are both made up of nucleotides, which are complex molecules important in genetics.

   Explanation

Each base on one strand of a polynucleotide strand creates a hydrogen bond with a particular base on the opposing $\mathrm{DNA}$ strand. Only adenine and guanine bind to thymine and cytosine, respectively. Complementary base paring is the term for this.