Which of the following statements is true of Chargaff's rule?
A) There are two hydrogen bonds between adenine and thymine.
B) There are two hydrogen bonds between cytosine and guanine.
C) There are three hydrogen bonds between adenine and cytosine.
D) There are three hydrogen bonds between guanine and thymine.

Question

Quizplus · Accepted Answer

Chargaff's rule states that DNA from any cell of any organism should have a 1:1 ratio (base pair rule) of pyrimidine and purine bases and, more specifically, that the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine. This is reflected in the hydrogen bonding between bases: adenine forms two hydrogen bonds with thymine.

Which of the Following Statements Is True of Chargaff's Rule