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Punnett Squares

Published on Nov 18, 2015

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PRESENTATION OUTLINE

Punnett Squares

and Non-Mendelian Inheritance

Objectives

  • Predict genotypes using Punnett squares
  • Determine phenotypes from those results
  • Distinguish codominance from incomplete dominance

Phenotype can be predicted from the genotype.

Non-Mendelian Inheritance

Codominance occurs when both alleles are expressed equally in the phenotype.

Red and White Petals

Example

Incomplete dominance occurs when the phenotype of the offspring is in between that of the parents.

Red, pink, and white flowers

Example