A gradual decrease in the size of the tail during metamorphosis in the life cycle of frog is a good example for
A
Cell senescence
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B
Pinocytic activity
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C
Programmed cell death
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D
Cell necrosis
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Solution
The correct option is C Programmed cell death Frogs undergo metamorphosis during their development from tadpole larva into an adult. This process takes around three months during which young differs from adult and undergoes programmed cell death or apoptosis wherein tail disappears which is essential for frog's development.