According to Chargaff's rule, a pyrimidine on one strand of DNA must be paired with a(n) _______ on the other strand.
A) purine
B) pyrimidine
C) adenine
D) guanine
E) cytosine

Question

Quizplus · Accepted Answer

Chargaff's rule states that adenine pairs with thymine (A-T) and guanine pairs with cytosine (G-C). This means that a pyrimidine on one strand (either Cytosine or Thymine) must be paired with a purine on the other strand (either Adenine or Guanine), in order to maintain the A-T and G-C base pairing rule. Therefore, choice A is the correct answer.

According to Chargaff's Rule, a Pyrimidine on One Strand of DNA