Punnett Squares and Sex-Linked Traits

This Punnett Squares and Sex-Linked Traits video also includes:

Until the 1960s, the life expectancy of a hemophiliac was only 11 years. An informative video explains how to solve a Punnett square when there is a sex-linked trait — in this case hemophilia. It includes a discussion of the xy chromosomes and the possible genotypes. 

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Instructional Ideas

  • Use handouts found at the publisher's website
Classroom Considerations

  • Requires prior experience with solving Punnett squares, as well as knowledge of exponents, ratios, percent, and probability
  • The 17th video in a series of 33
Pros

  • Video works well in both a traditional or a flipped classroom
  • Creators moderate the comments to prevent bad language
Cons

  • None