Question

According to Chargaff's rule, base pairing in DNA should resemble which of the following?
A = T; C = G
A = C; T = G
A = G; T = C
A = U; C = G

Answer 1

i think there's mistakes in ur options
MAY BE THE FIRST OPTION RIGHT

Answer 2

First option is correct.
Adenine = Thymine
Cytosine = Guanine