Chapter 17.1, Problem 2CC

Summary Introduction

To explain: The reason behind the expression of only one variant of each character in the F1 generation.

Introduction: An allele is defined as a variant of a gene responsible for coding a specific character. There are atleast two different alleles for each phenotypic characteristics. The interaction between the alleles is responsible for different phenotypic traits. These interactions can produce three types of genotypes: homozygous dominant, heterozygous and homozygous recessive.