APP A nitrogenous base found in DNAand RNA. It is also a constituent of certaincoenzymes,for example NAD and FAD,and when combined with the sugar ribose it forms thenucleoside adenosine,found in AMP,ADP,andATP.Adenine is a PURINE,and contains a pairof fused r......（本文共 344 字） [阅读本文] >>
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