Respuesta :
A, Adenine & Thymine, are one of the complementary base pairs for DNA.
Answer:
adenine and thymine
Explanation:
The four nitrogenous bases of DNA are thymine, adenine, guanine, and cytosine. Guanine and cytosine are bound together by three hydrogen bonds; whereas, adenine and thymine are bound together by two hydrogen bonds. This is known as complementary base pairing.