65th B.P.S.C. (Pre) 2019
Which of the following hormones contains iodine?
aTestosterone
bAdrenaline
cThyroxine✓ Correct
dInsulin
eNone of the above/More than one of the above
Explanation
Iodine is present in the hormone thyroxine. It is also called T4 (tetraiodothyronine). Thyroxine is secreted by the thyroid gland. The endocrine hormone that stimulates the thyroid gland to secrete thyroxine is TSH (Thyroid Stimulating Hormone) or thyrotropin, which is secreted by thyrotroph cells of the anterior pituitary. Due to iodine deficiency in the body, goitre occurs.
general-science