Mechanisms of Evolution

Gene Flow

Topic Menu
Content Contributors
Christian Bien Portrait_edited.jpg

Ben Whitten

Learning Objectives

tutorial.png

one.png
What is gene flow?
Slide1.jpeg

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


Very few populations are completely isolated 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.

two.png
Slide2.jpeg
two.png
Slide2.jpeg
two.png
Slide2.jpeg
two.png
Slide2.jpeg
two.png
Slide2.jpeg
two.png
Slide2.jpeg
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

Registrations Now Open for Empowered Academy

A Free Student-Centred Revision Program

Logo-New-Large.png