Pregunta:
1 Biological precursors of most are amino acids, such as ornithine, lysine, phenylalanine, tyrosine, tryptophan, histidine, aspartic acid, and anthranilic acid. 2 can be synthesized from tryptophan or aspartic acid.
Autor: Dwight ObillosRespuesta:
1 alkaloids 2 Nicotinic acid
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Autor
Dwight Obillos