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Gene flow is the transfer of alleles or genes from one population to another
Looks like we have a new addition to the family
Little Timmy over there has the alleles for short legs and tame behavior because his mother and I come from completely different gene pools
If gene versions are carried to a population where those gene versions previously did not exist, gene flow can be a very important source of genetic variation
Physical barriers to gene flow include impassable mountain ranges, oceans, or vast deserts
I'm so glad no barriers got in the way of meeting you
You're probably wondering how exactly gene flow relates to evolution. Migration into or out of a population may be responsible for a marked change in allele frequencies, which can introduce new traits. These traits will now be apart of each generation, resulting in that species evolving.
Thanks for joining us, hope you learned a few things about gene flow
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