The Conversion of Tryptophan to 5-Hydroxytryptophan in the Serotonin Synthesis

question 19

Multiple Choice

The conversion of tryptophan to 5-hydroxytryptophan in the serotonin synthesis pathway is analogous to the conversion of _________ to _________.

• A)glycine; serine
• B)phenylalanine; tyrosine
• C)tyrosine to thyroxine
• D)dopa to dopaquinone
• E)all of the above

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