Question

what is the appropriate complementary base to a-t-g-c?
c-g-t-a
t-a-c-g
a-t-g-c
a-c-g-g

Explanation:

In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). So for the sequence A - T - G - C, the complementary bases are T - A - C - G.

Answer:

B. T-A-C-G