Chymotrypsin is a mammalian digestive enzyme that catalyzes the hydrolysis of proteins in the small intestine. it is highly selective in its action as it hydrolyzes only those peptide bonds on the carboxyl side of AROMATIC AMINO ACIDS such as tyrosine, phenylanine, tryptothan.
Thus, of all listed tyrosine and phenylalanine are the amino acids.
The answer is ganglia. As indicated, they house many cell
bodies of afferent and efferent neurons.
Spinal ganglia are located in the dorsal (that contain cell bodies of afferent
neurons) and ventral roots (that house cell body
of efferent neurons) of a spinal nerve.