Question

Write the names of four nitrogen bases in a DNA molecule.

Answer 1

Adenine, guanine, cytosine, and thymine

1. The fundamental unit of a DNA molecule is the nucleotide.
2. The nucleotide is made up of a nitrogen base, a sugar molecule, and a phosphate radical.
3. There are four types of nitrogen bases found in a DNA molecule, which are adenine, guanine, cytosine, and thymine.