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

The right answer is A = T; C = G.

Chargaff's rules indicate that the DNA of any cell or organism must have a ratio of 1 to 1 between purine bases and pyrimidine bases and, more specifically, that the amount of guanine is equal to the amount cytosine, and that the amount of adenine is equal to the amount of thymine. This trend is found in both strands of DNA.