Question

which nucleotide is only found in dna? cytosine thymine uracil guanine

Explanation:

DNA has four nucleotides: adenine (A), thymine (T), cytosine (C), and guanine (G). RNA has adenine, uracil (U), cytosine, and guanine. Thymine is unique to DNA. Cytosine and guanine are in both DNA and RNA, and uracil is only in RNA.

Answer:

thymine