__ causes gradual change in a species and leads to its evolution.

Genetic engineering

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Mutation

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Heridity

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Genetic counselling

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Solution

The correct option is B Mutation
The genes in any organism are subjected to constant changes. Some changes are not helpful and never get passed on, while others get inherited. Those which are inherited and incorporated into the population lead to the formation of new species. Evolution absolutely depends on mutations because this is the only way that new alleles are created causing variations.

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Similar questions

Assertion: Formations of new species and variations lead to evolution.

Reason:All genetic variations lead to formation of varieties of organisms

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