Inheritance and Pedigrees
Tracking Disease through Generations
Patterns of Inheritance
Believe it or not, there are very identifiable patterns to the ways humans inherit single gene traits. (Remembering that polygenic -multiple gene- traits are far more complicated)��
Autosomal Dominant
Autosomal Recessive
Sex - Linkage
Pedigrees
AKA = Family trees used to track the inheritance of a genetic disorder
Pedigrees
Reading a Pedigree:�
Figure it out...
Recognizing phenotypes
Widow’s Peak (dominant)
Hitchhiker’s thumb (recessive)
Dimples (dominant)
Tongue Rolling (dominant)
Free earlobes (dominant)
PTC tasting (dominant)