Which of the following statements correctly describes one of Chargaff's rules regarding DNA?
A)The percentages of adenine and cytosine are roughly equal,as are the percentages of guanine and thymine in the DNA of a given species.
B)DNA has a double helical structure.
C)DNA base composition does not vary between species.
D)The percentages of adenine and thymine are roughly equal,as are the percentages of guanine and cytosine in the DNA of a given species.

Question

Quizplus · Accepted Answer

Chargaff's rule states that the percentages of adenine and thymine are roughly equal, as are the percentages of guanine and cytosine, in the DNA of a given species. This rule is important because it helped Watson and Crick determine the base pairing rules that govern the structure of DNA, which in turn led to the development of our current understanding of DNA replication and transcription.

Which of the Following Statements Correctly Describes One of Chargaff's