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 (deoxyribonucleic acid) has four nitrogen - containing bases. Adenine pairs with thymine (\(A - T\)), and guanine pairs with cytosine (\(G - C\)). Uracil is found in RNA (ribonucleic acid), not DNA. Glycine is an amino acid, not a base in DNA.

Answer:

adenine, thymine, guanine, cytosine