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This Lactose Intolerance: Fact or Fiction activity also includes:
Around the world, about 2/3 of adult humans are lactose intolerant. Scholars work in small groups to discuss a few statements about lactose intolerance. Then, they watch a video on the topic and readdress each statement. Whole-class discussion allows for a better understanding of the evolution related to the enzyme lactase.
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CCSS:
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NGSS:
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Instructional Ideas
- Invite a doctor to speak to the class about lactose intolerance
- Discuss the cultural differences in lactose intolerance, i.e. most people of European descent produce lactase while many other groups don't
Classroom Considerations
- Relies on prior knowledge of heredity, natural selection, mutations, genetic variation, enzymes, and digestion
Pros
- Provides links for further study of lactose, human evolution, and genetics
- Offers discussion questions encouraging higher-level thinking skills
Cons
- None