Q. A gradual decrease in the size of the tail during metamorphosis in the life cycle of frog is a good example for
A) Programmed cell death
B) Cell necrosis
C) Cell senescence
D) Pinocytic activity
Explanation
Upon metamorphosis, amphibian tadpoles lose there tail through programmed cell death induced by thyroid hormone$\ (T_{3})$. Before transformation, the tail functions as an essential locomotory organ.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.