Which of the following is a characteristic of uracil?
A) It has the ability to bond with adenine.
B) It has the ability to bond with guanine.
C) It is a purine.
D) It has the ability to bond with cytosine.
E) It contains two nitrogenous rings.

Question

Quizplus · Accepted Answer

Uracil is a pyrimidine base found in RNA, where it pairs with adenine through hydrogen bonding. Unlike thymine, its counterpart in DNA, uracil lacks a methyl group at the carbon 5 position. It does not bond with guanine or cytosine, and it is not a purine nor does it contain two nitrogenous rings, which are characteristics of purine bases.

Which of the Following Is a Characteristic of Uracil