Complementary base pairing
A) occurs in DNA but does not take place in RNA.
B) takes place between two purine bases.
C) takes place between purine and pyrimidine bases.
D) results in the formation of the double helix of RNA.
E) takes place between the bases and the phosphates in the backbone of the chain.

Question

Quizplus · Accepted Answer

Complementary base pairing occurs between purine and pyrimidine bases in DNA, where adenine pairs with thymine and guanine pairs with cytosine. This base pairing allows for the formation of the double helix structure of DNA. In RNA, thymine is replaced by uracil, but base pairing still occurs between complementary bases.

Complementary Base Pairing