Question

if thyroid is removed from tadpole the persistence of larval condition occurs which is known as​

Answer 1

In amphibian metamorphosis, thyroxine ( T

4

- iodine-containing hormone) produced by the thyroid gland causes apoptosis of the cells of gills, tail, and fins of tadpoles. It plays a major role in the amphibian metamorphosis that transforms the vegetarian aquatic tadpole into a carnivorous terrestrial adult frog, with better neurological, visuospatial, olfactory and cognitive abilities for hunting, as seen in other predatory animals. Removal of this organ will arrest the development of tadpole.