Q: There are only four possible bases that make up each dna nucleotide: adenine, guanine, thymine, and?


Read this paragraph and choose the correct option from the provided answers:

The only difference between each nucleotide is the identity of the base. There are only four possible bases that make up each DNA nucleotide: adenine (A), guanine (G), thymine (T), and cytosine (C).

 Choices:

- taurine

- phenylalanine

- guarine

- cytosine


A:
cytosine