Allopatric speciation occurs when geographically separated populations evolve differently due to distinct selection pressures, accumulating genetic differences until they can no longer interbreed, forming new species.
- populations are geographically seperated - reproductive separation and no gene flow between populations due to isolation - populations are in different environments, so face different selection pressures - natural selection occurs differently in each population - different alleles are selected - frequencies of different alleles increase in each group - differences in gene pools accumulate - individuals from different populations are no longer able to interbreed to produce viable fertile offspring - new species have formed
| Front | What happens in allopatric speciation? |
|---|---|
| Back | - populations are geographically seperated - reproductive separation and no gene flow between populations due to isolation - populations are in different environments, so face different selection pressures - natural selection occurs differently in each population - different alleles are selected - frequencies of different alleles increase in each group - differences in gene pools accumulate - individuals from different populations are no longer able to interbreed to produce viable fertile offspring - new species have formed |
Tags: inheritance
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