What is responsible for metamorphosis?

The correct answer is 'Thyroxine'.

Key Points

• Thyroxine:
  • Thyroxine is a hormone produced by the thyroid gland and plays a crucial role in the regulation of metabolism, growth, and development in vertebrates.
  • In amphibians, thyroxine is specifically responsible for metamorphosis, the process through which larvae transform into adult forms.
  • The hormone stimulates the resorption of the tadpole's tail and the development of limbs in frogs, among other changes.

Additional Information

• Estrogen:
  • Estrogen is a primary female sex hormone important for the regulation of the reproductive system and secondary sexual characteristics.
  • It is not involved in the process of metamorphosis.
• Parathormone:
  • Parathormone, also known as parathyroid hormone, regulates calcium levels in the blood and bone metabolism.
  • It does not play a role in metamorphosis.
• Glucagon:
  • Glucagon is a hormone produced by the pancreas that raises blood glucose levels by promoting the conversion of glycogen to glucose in the liver.
  • It is not involved in metamorphosis.