Chapter 3, Problem 41P

Summary Introduction

a.

To determine:

Whether the description of individuals with spherocytosis represents incomplete penetrance, variable expressivity, or both. Also, whether an individual derives any values from numerical data to measure incomplete penetrance or variable expressivity.

Introduction:

Penetrance is defined as the proportion of people with a specific genotype who exhibit the expected phenotype.

Summary Introduction

b.

To determine:

The treatment for spherocytosis and the way incomplete dominance or variable expressivity would affect the treatment.

Introduction:

Individuals carrying similar genotypes can exhibit variation in the expression of phenotypes. The extent to which a specific genotype is expressed in a phenotype is known as expressivity.