Some traits only exist in males and some only in females. Pupils learn how the location of genes on sex chromosomes determines them using an interactive lesson. An animation illustrates how scientists know this to be true and shows how to organize the information in a Punnett square.

Concepts

chromosomes, genes, heredity, inheritance, genetic traits, recessive traits, sexual reproduction, dominant traits

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Additional Tags

science

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Instructional Ideas

• Follow the lesson with an experiment tracking genetic traits such as the fly experiment in the lesson
• Create a guided notes document for learners to complete as they watch interact with the lesson

Classroom Considerations

• Requires previous experience with sex chromosomes

Pros

• Includes video discussions of the historical research
• Provides online reflection questions to check for understanding

Cons

• None

Common Core

SL.9-10.2 SL.11-12.2 RST.9-10.7 RST.11-12.7