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Addition of a trace of thyroxine or iodi...

Addition of a trace of thyroxine or iodine in water containing tadpoles will

A

keep them in larval stagge

B

hasten their metamorphosis

C

slow down their metamorphosis

D

kill the tadpoles

Text Solution

Verified by Experts

The correct Answer is:
B

Thyroxine controls tissue differentiation and metamorphosis of tadpole larva into frog. Gundernatch (1912) proved that metamorphosis of tadpole into adult frog is controled by thyroxine. Addition of thyroxine in water will hasten the metamorphosis
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