Chapter 41, Problem 2MDRI

Summary Introduction

To predict: The percentage for a child to have an unattached earlobe when a mother has the dominant and heterozygous unattached earlobes while a father has the recessive and homozygous attached earlobe.

Introduction: According to Mendelian inheritance, a single character is controlled by one or more pairs of alleles. These alleles can be either dominant or recessive. Usually, the dominant allele masks the expression of recessive allele. A recessive allele is expressed only in the homozygous condition.