Review What does incomplete dominance mean and give an example

1

• Review What does incomplete dominance mean and
  give an example
• Design an Experiment Design an experiment to
  determine whether the pink flowers of petunia
  plants result from incomplete dominance
• Compare and Contrast What is the difference
  between incomplete dominance and codominance

2
Ch 11 Introduction to Genetics

• 11.3 Other Patterns of Inheritance

3

• In most organisms, genetics is more complicated,
  because the majority of genes have more than two
  alleles
• Many important traits are controlled by more than
  one gene.

4
Incomplete Dominance

• Heterozygous phenotype is a blending or mixing of
  the homozygous phenotypes.

5
Codominance

• Both alleles are visible
• Speckled fur/feathers.

6
Multiple Alleles

• Gene with more than two alleles.

7
Polygenic Traits

• Traits controlled by two or more genes
• Wide range of phenotypes
• Skin color.

8
Genes and the Environment

• Genes provide a plan for development
• Environment plays a role in how the plan unfolds.

9
Western White Butterfly

• Spring hatches have more wing pigments than
  summer hatches
• To fly the body temperature needs to be 2840C.