Chapter 5.2, Problem 30AQP

Summary Introduction

To explain:

The reason that, when a yellow female Labrador retriever was mated with a brown male, half of the puppies were brown and half were yellow, and when the same female is mated with a different brown male , it produced only brown offspring.

Introduction:

The Labrador retrievers contains three type of coat color; Brown, yellow, and black. The phenotype of coat color depends on segregation of two genes, which are involved in coat color expression; B_E_ is responsible for black coat color, bbE_ is responsible for brown color, and B_ee, or bbee are responsible for yellow coat color.