Question
Biology Question on Frogs
Hormone responsible for metamorphosis in tadpole is:
A
adrenaline
B
thyroxine
C
aldosterone
D
vasopressin
Answer
thyroxine
Explanation
Solution
The hormone thyroxine is secreted by the thyroid gland. Thyroxine necessarily takes part in the process of metamorphosis in tadpole. If somehow, the thyroxine becomes inactive in tadpole then it will never change into an adult frog.