J jchamp New member Oct 4, 2010 #1 a-keratin is rich in the amino acid glycine. What is the net charge of glycine at pH 4.0? a. +2 b. 0 c. -1 d. +1 e. -2
a-keratin is rich in the amino acid glycine. What is the net charge of glycine at pH 4.0? a. +2 b. 0 c. -1 d. +1 e. -2