History of Purine

	Revision 6 . . July 31, 2001 2:24 am by Josh Grosse
	Revision 5 . . (edit) July 31, 2001 12:38 am by Buzco [Copied "Watson-Crick" note from pyridine page.]

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Difference (from prior major revision) (no other diffs)

Changed: 1c1

A purine is one of the bicyclic ("two-ringed") components of nucleic acids, Adenine? and guanine.

Purine is a bicyclic organic compound. Two of the bases in nucleic acids, adenine? and guanine, are purine derivatives. In DNA, these bases form hydrogen bonds with their complementary pyrimidines.

Changed: 3,5c3

In DNA, these bases form hydrogen bonds with their complementary pyrimidines. purine pyrimidine

purine pyrimidine

Changed: 13c11

purine pyrimidine

purine pyrimidine