Question

if a sequence of bases on one strand of a dna molecule is a-g-c-t-a, what is the corresponding sequence of bases on the complementary strand?
t-c-g-a-t
u-c-g-a-u
a-g-c-t-a

Explanation:

In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). Given the sequence A - G - C - T - A, we match each base with its complementary base. A pairs with T, G with C, C with G, T with A, and A with T, resulting in T - C - G - A - T. Uracil (U) is present in RNA, not DNA, so the option with U is incorrect. The complementary strand is not the same as the given strand.

Answer:

T - C - G - A - T