Why Can't Mules Have Babies?

The ancient Romans use the saying "When a mule foals" as a metaphor for the impossible. Viewers learn through a video lesson the genetics behind hybrid breeding, giving more meaning to this saying. The instructor explains the manipulation of chromosomes to create sex cells and how this applies to hybrid cells.

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CCSS: Adaptable
Instructional Ideas

  • Post the video as a resource for absent pupils and those needing extra instruction
  • Use to introduce the topic of chromosomes within sex cells
Classroom Considerations

  • Requires a basic understanding of reproduction genetics

  • Uses images to help explain the concept
  • Includes real-life implications that add relevance

  • None
Common Core