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Home » A very small population of a species faces a greater threat of extinction than a larger population. Provide a suitable genetic explanation.
A very small population of a species faces a greater threat of extinction than a larger population. Provide a suitable genetic explanation.
Biology | CBSE | Class 10 | Heredity and Evolution | NCERT Exemplar | Science
A very small population of a species faces a greater threat of extinction than a larger population. Provide a suitable genetic explanation.

Solution: Due to the following factors, a very small population of a species faces a greater chance of extinction than a larger population-

Inbreeding: Inbreeding is encouraged by a small population. Inbreeding leads to fewer varieties.

Genetic drift: Genetic drift occurs when a small population is exposed to an abrupt shift in the environment. Genetic drift may result in the extinction of small-population organisms.

Inbreeding depression: This causes a negative population increase, which is harmful to the survival of small-population species.

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