Question

How does evolution occur?

Answer 1

Answer:

In biology, evolution is the change in the inherited traits of a population from generation to generation.

These traits are the expression of genes that are copied and passed on to offspring during reproduction.

Mutations in these genes can produce new or altered traits, resulting in heritable differences (genetic variation) between organisms.

New traits can also come from transfer of genes between populations, as in migration, or between species, in horizontal gene transfer.

Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.

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Answer 2

Answer:

How does evolution occur?

Evolution occurs every multiple generations. Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.

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