Which of the following can be formed by hydroxylation of phenylalanine?
(a) Serine
(b) Tyrosine
(c) Tryptophan
(d) Leucine
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I'd like to ask this question from Biosynthesis of Amino Acids topic in division Lipid Biosynthesis, Biosynthesis of Amino Acids, Nucleotides and Related Molecules of Biochemistry