Question

which bases are found in a strand of dna?
thymine, guanine, cytosine, uracil
guanine, cytosine, uracil, adenine
cytosine, glycine, adenine, thymine
adenine, thymine, guanine, cytosine

Explanation:

DNA contains four nitrogen - containing bases. Adenine pairs with thymine, and guanine pairs with cytosine. Uracil is found in RNA, not DNA, and glycine is an amino - acid, not a DNA base.

Answer:

D. adenine, thymine, guanine, cytosine