Chapter 6, Problem 26P

Summary Introduction

To analyze:

To devise an experiment to identify Auxotrophic bacteria that are unable to produce lysine (${\text{lys}}^{\text{-}}$) and valine (${\text{val}}^{\text{-}}$) amino acids

Introduction:

Replica plating, a simple technique to transfer few cells from each bacterial colony in a plate to another plate, will be useful to identify auxotrophic bacteria in a pool of prototrophic bacteria.