Question

Which nitrogenous bases pair with each other? What type of hydrogen bond forms between them?

Answer 1

Base pairs occur when nitrogenous bases make hydrogen bonds with each other. Each base has a specific partner: guanine with cytosine, adenine with thymine (in DNA) or adenine with uracil (in RNA). The hydrogen bonds are weak, allowing DNA to 'unzip'.

Answer 2

The bases which pair with each other are

Guanine - Cytosine

Adenine - thymine(DNA), uracil acid(RNA)

Guanine and Cytosine make three hydrogen bonds

Adenine and thymine/uracil acid make two hydrogen bonds