The terms penetrance and expressivity in terms of phenotypic expression. Introduction: The phenotype of an individual is completely determined by the functional products of a gene. The gene expression can also be changed by the interaction between the genotype of an individual and the outside environment. Phenotypic expression is influenced by both genetic and environmental factors.

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Chapter 4, Problem 35PDQ

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To determine: The terms penetrance and expressivity in terms of phenotypic expression.

Introduction: The phenotype of an individual is completely determined by the functional products of a gene. The gene expression can also be changed by the interaction between the genotype of an individual and the outside environment. Phenotypic expression is influenced by both genetic and environmental factors.

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