Question

If double stranded DNA has 14% C (cytosine) what percent A (adenine), T (thymine) and G (guanine) would you expect?

Answer 1

A purine always pairs with pyrimidine. Adenine pairs with thymine and cytosine pairs with guanine. 

Therefore, as per the given data If cytosine = 14% then guanine = 14%. 

According to Chargaff s rule, 

(C+G) = 14+ 14 = 28% 

Therefore, (A+T) = 72% 

So, A= 36%, T= 36%, G = 14%.