Chargaff showed that DNA that has 30% adenine has ___ cytosine.
A) 20%
B) 30%
C) 60%
D) 40%
E) a percentage that cannot be determined of

Question

Quizplus · Accepted Answer

According to Chargaff's rules, the amount of adenine (A) equals thymine (T), and the amount of cytosine (C) equals guanine (G) in DNA. If adenine is 30%, then thymine is also 30%, leaving 40% for cytosine and guanine combined. Therefore, cytosine would be 20%.

Chargaff Showed That DNA That Has 30% Adenine Has ___