Incomplete Dominance 3 intermediate phenotype rd

Incomplete Dominance
• Heterozygotes are a 3rd
intermediate phenotype
• Heterozygotes present both
• Is this a picture of
a Co-dominant
trait Incomplete
dominant trait?
Multiple Alleles
More than 2 alleles exist for one trait
Not just one dominant allele and one recessive
Leads to more diverse mixture of alleles
Ex: Blood Type
Inheritance of Blood Type
What is a pedigree?
Pedigree = a family history that shows how a
trait is inherited over several generations.