Instructional Video

X Inactivation

Curated and Reviewed by Lesson Planet

Have you ever wondered why calico cats have such a colorful coat? The process of X inactivation is an interesting phenomenon in females that drives the physical appearance of individuals. Viewers of an intriguing video connect knowledge of sexual reproduction to the process with a real-life example.

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CCSS: Adaptable
NGSS: Adaptable
Additional Tags
Instructional Ideas
  • Explain how female embryonic development is different due to the process of X inactivation
  • Identify a real-life example where you can see the physical effects of X inactivation
  • Use as an extension to a discussion of X-linked traits
Classroom Considerations
  • Expects young scientists to have an understanding of cell division and chromosomes
Pros
  • Uses an interesting example of calico cats
  • Good visual of division of cells and the effects X inactivation has on features
Cons
  • None
Common Core