Chapter 15, Problem 4SYK

Summary Introduction

To explain: The adverse phenotypic effects associated with chromosomal alterations.

Introduction: The male fruit flies have one X chromosome and one Y chromosome, and the female fruit flies have a pair of homologous X chromosomes. The normal phenotype of eye color in natural population of fruit flies is most commonly observed to be red eyes and is called the wild type. Traits that are mutated from the wild type, such as white eyes in fruit fly, are called mutant phenotype.