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Which hormone contains iodine? — UPSC Prelims PYQ 1995

Which one of the following hormones contains iodine?

Thyroxine
Testosterone
Insulin
Adrenaline

Explanation

Option (a) is correct

Thyroxine (T4) is a hormone produced by the thyroid gland that contains four atoms of iodine per molecule.

Answer: (a) Thyroxine

1995, UPSC Prelims PYQs

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