Which of the following hormones is a modified amino acid? (a) epinephrine (b) estrogen (c) prostaglandin (d) progesterone

Ans is A. Modified Amino Acid Hormones- This class of hormones is made by chemical modification of amino acids, mainly tyrosine. They include thyroid hormones and the catecholamine...

Answer is (A). A. Epinephrine, also known as adrenaline, is secreted from adrenal medulla. It is also called catecholamine and is derived from the modified amino acid tyrosine. B....