Mechanisms of Evolution

Gene Flow

Contributors
Christian Bien Portrait_edited.jpg

Ben Whitten

tutorial.png

one.png
What is gene flow?
Slide1.jpeg

Gene flow can be defined as the transferring of alleles that results from emigration, immigration and migration of individuals between populations.


Very few populations are completely isolates from each other, and so generally, migration occurs both in and out of the population.


Migrating individuals will either add or remove alleles from any given population due to leaving (emigrating from) or joining (immigrating to) a population.

two.png
What is an example of gene flow?
Slide2.jpeg

One example of gene flow in action is the increasing the B blood group in Indigenous Australians, which occurred as a result of individuals migrating in from Asia and Europe, increasing the frequency of the allele.

Topic Menu
Gene Pool Change
Mutation and Variation in Evolution
Natural Selection
Artificial and Sexual Selection
Genetic Drift
Gene Flow
Principles of Evolution
Speciation
Extinction
Students Walking Up Stairs_edited.jpg

Want your ATAR notes to empower over 77,000 students per year?

Logo-New-Large.png

Join the Team.
Empower Education.

three.png

Sign Up for Free to Read More 

Get instant access to all content and subscribe to our weekly email list on study tips, opportunities and other free resources. 

It only takes a minute...

Slide3.jpeg
four.png
Slide4.jpeg
five.png
Slide5.jpeg
six.png
Slide6.jpeg
157-seven.png
Slide1.jpeg
156-eight.png
Slide8.jpeg