Class VIII

Thyroxin produced by
  1. Pituitary gland
  2. Adrenal gland
  3. Thyroid gland
  4. Testes
Production of estrogen and testosterone are controlled by
  1. Pineal gland
  2. Pituitary gland
  3. Adrenal gland
  4. Pancreas
There are__ __ pairs of chromosome in human cell.
  1. 23
  2. 46
  3. 22
  4. all are wrong
Thyroxin produced by
  1. Pituitary gland
  2. Adrenal gland
  3. Thyroid gland
  4. Testes
The female hormone secreted by the ovaries at the onset of puberty is _ 
  1. Estrogen 
  2. Insulin 
  3. Adrenalin 
  4. Testosterone 
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