Question

When DNA ladder's rungs are the same width, why do A-T and G-C form complementary base pairs according to Chargaff's rule

A. The larger C pairs with the smaller A, and the larger G pairs with the smaller T.
B. The larger A pairs with the smaller G, and the larger T pairs with the smaller C.
C. The larger A pairs with the smaller T, and the larger G pairs with the smaller C.
D. The larger T pairs with the smaller A, and the larger C pairs with the smaller G.

Answer 1

option C. the larger A pairs with the smaller T, and the larger G pairs with the smaller C.