Chapter 16, Problem 23ESP

(a)

Summary Introduction

To describe: The two different mutations which would result in auvrA constitutive phenotype and mention the actual genotypes involved.

Introduction: Mutation is the process of changes at the genetic level in which the coding of the DNA is altered by the chemical, radiation, and environmental factors. These factors are termed as mutagens. Mutagens are capable to induce mutation in an individual.

(b)

Summary Introduction

To describe: The outlined series of a genetic experiment that makes use of diploid strains for the determination of the possible mutations that have been isolated.

Introduction: Mutations are the changes in the sequence of DNA which may be harmful or useful for an individual. It leads to evolution and the better survival of an individual. The mutations can be inherited or acquired.