1. Types of Inheritances I Pp 183-184, 244

3. Single gene traits Controlled by only one gene
- complete, incomplete, and codominant
EX. Huntington Disease (D/d), Sickle Cell
Anemia (N/S) , Cystic Fibrosis (R/r)

4. Complete Dominance

5. Complete Dominance One allele is completely dominant over the other
In the heterozygous phenotype the dominant masks the recessive

6. Incomplete Dominance

7. Incomplete Dominance
Dominant allele is unable to completely mask the recessive allele
The heterozygous phenotype is an intermediate (or blend) of the two
3 phenotypes and 3 genotypes

9. Sickle Cell Anemia

10. Codominance

11. Codominance Both alleles are expressed
An individual that is heterozygous shows both traits at once
3 phenotypes and 3 genotypes N S N S