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Question

The function of thyroxine hormone in frog is to control _______.
  1. Growth hormone
  2. Metamorphosis
  3. Reproductive organs
  4. Endocrine glands

A
Growth hormone
B
Reproductive organs
C
Metamorphosis
D
Endocrine glands
Solution
Verified by Toppr

Thyroxine hormone plays a major role in the metamorphosis of the frog. Metamorphosis is a process which converts larval stage to a tadpole and finally into a frog. It was proved by the ectomy (removal) of the thyroid gland in some larval stages of frog, which showed only very little growth. Hence, it was proved that thyroid gland plays a great role in the metamorphosis of the frog.
Thus, the correct answer is option B.

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Which hormone controls metamorphosis in frogs?
(a) thyroxine
(b) adrenaline
(c) growth hormone (GH)
(d) testosterone
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Q2
The function of thyroxine hormone in frog is to control _______.
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Thyroxine hormone is responsible for the metamorphosis in frogs.
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Q4

Consider the following statements about Metamorphosis:

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Q5

Thyroxine, a hormone produced in the thyroid gland in humans, contains:


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