Chapter 3, Problem 35QP

a.

Summary Introduction

To determine: The possible phenotypes for the co-dominant alleles a, b, c, and recessive allele d.

Introduction: The genotype is the genetic constitution of the organism whereas the phenotype refers to external characters visible in an organism. The alleles are the contrasting forms of a gene, and one of them is dominant, and the other is recessive.

b.

Summary Introduction

To determine: The possible genotypes for the co-dominant alleles a, b, c, and recessive allele d.

Introduction: The dominant allele masks the expression of the recessive allele. Therefore, the dominant allele is expressed in homozygous and heterozygous genotypes whereas the recessive phenotype is only expressed under homozygous condition.