<prompt> Tyrosine deficiency causes ?DepressionHypehyroidismHyperpigmentationPhenylketonuria  <response>: Ans. is a i.e., Depression Tyrosine deficiency causes hypothyroidism lethargy, weight gain as tyrosine is required for T3 T4; depression due to dopamine deficiency; albinism hair hypopigmentation due to deficiency of melanin; and stunted growth as tyrosine is a component of proteins. 