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Question

Iodine is required for the synthesis of the hormone

A
Insulin
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B
Thyroxine
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C
Adrenaline
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D
Testosterone
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Solution

The correct option is C Thyroxine
Thyroxine or T4 is a hormone secreted into the bloodstream by the thyroid gland. It is the inactive form which is converted to an active form called triiodothyronine by organs such as the liver and kidneys.
The major function of the thyroid gland is to produce thyroid hormones required for the body's needs. To make thyroid hormone, the thyroid uses iodine. If iodine is not available in the diet, the thyroid gland may produce an insufficient amount of hormone. A minimum of 60 micrograms of elemental iodine per day is required to make thyroid hormone.
Therefore, the correct answer is option B.

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