Question

how genetic death occurs in animals

Answer 1

The best evidence for the role of cell death genes comes from the pioneering studies of Horvitz and his colleagues working with the free- living nematode Caenorhabditis elegans (reviewed in Ellis et alSA). In these animals, 131 of the normal 1090 cells die during development. 

Answer 2

Genetic death in Animals:

Genetic death refers to the expiry of organism before reproduction or exertion of particular gene form the gene pool of population.

In animals genetic death occurs due to,

• Extinction
• Rapid hunting
• Destruction of their habitats
• Animal pouching

A species becomes extinct or vulnerable when it is continuously exploited in its living environment due to many undesirable factors. When the animal gets extinct, its name and its identity is automatically removed from the genetic pool.