Chapter 13, Problem 2AC

Summary Introduction

To explain:

The relation of allele combination in heterozygotes and severity of cystic fibrosis symptoms, with better-functioning allele, with worse-functioning allele, and somewhere in between.

Introduction:

The inherited disease related to the functioning of mucous glands present in various parts of the body is cystic fibrosis. This is a chronic disease affecting major parts of the body and especially lungs. The affected individuals can live only up to thirty years.