Chemical Coordination and IntegrationHard

Question

Hormones thyroxine, adrenalin and the pigment melanin are formed from

Options

A.tryptophan
B.glycine
C.tyrosine
D.proline

Solution

Tyorsine is the precusor of : (a) hormone epinephrine (ie, adrenalin) and thyroid hormones, (b) neurotransmitter dopamine, (c) melanin (the black pigment of skin).

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