Gene Flow

Gene flow is the transfer of genetic material from one population to another. This can occur through the movement of individuals, such as when animals migrate to new areas, or through the transfer of pollen or seeds in plants.

Mechanisms of Gene Flow

There are several mechanisms through which gene flow can occur:

1. Migration of individuals between populations
2. Dispersal of seeds or pollen
3. Human-mediated gene flow through activities such as agriculture and animal breeding

Impacts of Gene Flow

Gene flow can have significant impacts on the genetic diversity and adaptation of populations. It can introduce new genetic variations into a population, which can increase its ability to adapt to changing environmental conditions. However, gene flow can also lead to the loss of unique genetic traits in isolated populations.

Study Guide

1. Define gene flow and explain its significance in population genetics.
2. List and describe the mechanisms through which gene flow can occur.
3. Discuss the impacts of gene flow on genetic diversity and adaptation in populations.
4. Compare and contrast the positive and negative effects of gene flow on population genetics.
5. Provide examples of gene flow in natural and human-mediated contexts.