Which of the following hormones contains iodine?Which of the following hormones contains iodine?
testosterone
adrenaline
thyroxine
insulin
Thyroxine hormone contains iodine. The two hormones produced by thyroid are thyroxine (T4 ) and triiodothyronine (T3). For the normal synthesis of these two hormones iodine is essential because of which iodine in our diet is very important. Thus, the correct answer is option c.