Chargaff's Rules State That in Typical DNA

Question

Chargaff's rules state that in typical DNA:
A) A = G.
B) A = C.
C) A = U.
D) A + T = G + C.
E) A + G = T + C.

Accepted Answer

Chargaff's rules state that in DNA, the amount of adenine (A) equals the amount of thymine (T), and the amount of guanine (G) equals the amount of cytosine (C). Therefore, A + G = T + C, as the total purines (A and G) equal the total pyrimidines (T and C).