Punnett Square Discovery



The gene combinations that might result from a genetic cross can be determined by drawing a diagram known as a Punnett Square! After an introduction to genetics and a vocabulary overview this lesson can be used to build and practice Punnett squares with monohybrid and dihybrid crosses using animal science examples.

Lesson Time

Monohybrid Punnett Squares
2 Class Periods
Dihybrid Punnett Squares
1 Class Period

Industries / Subjects / Grades

Industries / Pathways
  • Agriculture & Natural Resources Agriculture & Natural Resources

Standards and Objectives


California Academic Content Standards (2)
California's 2008 CTE Standards (5)

Related Instructional Objectives (SWBAT...)

  • Use practical, everyday animal and plant examples to practice and show how to use a Punnett Square to determine offspring results.
  • Understand how to predict phenotypic and genotypic results of a dominant and recessive gene pair.
  • Using the practice and after reviewing how to make a Punnett Square to predict offspring geno and phenotypic results, students will be asked to determine a ranch and pet store budget for expected progeny.
  • Apply appropriate problem-solving strategies and critical thinking skills to work-related issues and tasks.

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