Penetrance and Expressivity
Additional factors that act on a single gene can alter the expected outcomes that Mendel’s basic principles of inheritance predict. This text explores how penetrance and expressivity exemplify an exception to Mendelian inheritance.
Topics
- complete dominance
- complete penetrance
- dominance
- exception to Mendel
- expressivity
- genotype
- Gregor Mendel
- incomplete penetrance
- inheritance
- Mendel
- Mendelian trait
- penetrance
- phenotype
- polydactyly
- principles of inheritance
- simple trait
- unvarying expressivity
- variable expressivity