nucleotide
/ˈnukliəˌtaɪd/
noun
- A basic building block of DNA and RNA, consisting of a sugar, a phosphate, and a nitrogen base.
- The sequence of nucleotides determines genetic information.
- Cells need nucleotides to build new strands of DNA during replication.
- Each nucleotide in DNA contains one of four bases: adenine, guanine, cytosine, or thymine.