Lactase Persistence: Evidence for Selection

This Lactase Persistence: Evidence for Selection activity & project also includes:

What's the link between lactase persistence and dairy farming? Biology scholars analyze data to find evidence of the connection, then relate this to human adaptation. Working individually and in small groups, learners view short video clips to help guide the activity. They use the data to express how selective pressure has driven evolution in favor of milk in some areas of the world.

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CCSS: Adaptable
NGSS: Adaptable
Instructional Ideas

  • Use the activity to link natural selection and evolution with world culture for a fun cross-curricular exercise
  • Have groups look for lactase data for North and South America, as well as a map of dairy farming areas, to expand the data analysis within the lesson
Classroom Considerations

  • Consider letting pupils work in small groups or pairs for sections two and three of the activity
  • Copy maps in color to allow for easier analysis

  • The content is very interesting and the lesson is nicely structured
  • Pupils get to analyze several types of data and learn how to pull together inferences from several sources

  • None
Common Core