History of Pyrimidine

	Revision 7 . . August 31, 2001 8:11 am by (logged).186.19.xxx [*added 1 and 3 positions.]
	Revision 6 . . (edit) August 4, 2001 1:04 am by Josh Grosse

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

Changed: 1c1,7

Pyrimidine is an organic compound, similar to benzene but with two nitrogen atoms taking the place of carbon atoms in the ring. Three bases in nucleic acids, namely cytosine, guanine, and uracil?, are pyrimidine derivatives. In DNA, these bases form hydrogen bonds with their complementary purines.

Pyrimidine is an organic compound, similar to benzene but with two nitrogen atoms taking the place of carbon atoms at positions 1 and 3 relative to each other around the six-member ring. Three bases in nucleic acids, namely cytosine, guanine, and uracil?, are pyrimidine derivatives. In DNA, these bases form hydrogen bonds with their complementary purines.

Changed: 19c25

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