Question

cfa unit 3 (25/26) - kurdmistol
3.
which bases pair together in dna?
a a - g and c - t
b a - t and c - g
c a - u and c - g
d g - u and t - a

Explanation:

In DNA, adenine (A) pairs with thymine (T) through two hydrogen bonds, and cytosine (C) pairs with guanine (G) through three hydrogen bonds. Option A has incorrect pairings. Option C has uracil (U) which is found in RNA, not DNA. Option D also has uracil (U) which is not present in DNA.

Answer:

B. A-T and C-G