Lesson summary for...

Alike but Not the Same

Author/Source: National Institutes of Health
Overview:Students conduct a classwide inventory of human traits, construct histograms of the data they collect, and play a brief game that introduces students to major concepts related to human genetic variation and the notion of each individual's uniqueness.
Concepts:This lesson covers the following concepts:
  • Evolution results from selection acting upon genetic variation within a population.
  • Natural selection acts on phenotype as an expression of genotype.
Grade Level:9-12
Time:50 minutes
Teacher Background:Explore these links for additional information on the topics covered in this lesson:
Teaching Tips:This activity is an introduction to several activities within a module entitled Human Genetic Variation. We also recommend the second activity in this module: The Meaning of Genetic Variation. These activities focus on variation but could easily be extended to address variation's role in evolution.