Multiple choice

Deficiency of thyroxin causes

  1. goitre

  2. night blindedness

  3. beri beri

  4. scurvy
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A Correct answer
Explanation

A goitre is a swelling of the neck or larynx resulting from enlargement of the thyroid gland (thyromegaly), associated with a thyroid gland that is not functioning properly. The main reason is deficiency of iodine in the diet which is required for the synthesis of thyroid hormones.

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