Discuss the role environment plays on phenotypes

In recent years, scientists have begun to research how our environment can impact our phenotypes. In this outcome, we’ll learn about a few different ways our environment can impact us.

What You’ll Learn to Do

• Explain how epistasis impacts trait expression
• Describe polygenic inheritance and how to recognize it
• Describe continuous variation and how to recognize it
• Identify gene-environment interaction and how this impacts trait expression
• Explain pleiotropy and its impact on traits in a population

Learning Activities

The learning activities for this section include the following:

• Epistasis
• Polygenic Inheritance and Environmental Effects
• Effect of the Environment
• Pleiotropy and Human Disorders
• Self Check: Genetics and the Environment