Multiple Gene Effects

G cystic fibrosis pleiotropy one gene influencing

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Unformatted text preview: ’s Disease. Extensions of Mendel’s Laws: Complications to Basic Pedigree Patterns: Pleiotropy: one gene might contribute to several visible characteristics Incomplete penetrance: person inherits disease gene but does not develop the disorder Variable Expressivity: differences in expression of a genotype Marfan syndrome: skeletal, optical, and cardiovascular abnormalities Allelic Heterogeneity: Different mutations in the same gene can cause an identical phenotype (e.g....
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This document was uploaded on 03/23/2014 for the course BIO 152 at Georgetown.

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