Chapter 9.3, Problem 27AQP

a.

Summary Introduction

To determine:

The relatively high frequency of cotransformation of traits that scientists observed.

Introduction:

In transformation process, the closer the genes present on a DNA, the more they have possibility to transform together and have higher transformation rates. In the experiment, the mutants are of Streptococcus pneumonia whichshowed transformation and give different variants.

b.

Summary Introduction

To determine:

The conclusions that can be drawn about the order of M, S and F genes on the bacterial chromosomes.

Introduction:

In transformation process, the closer the genes present on a DNA, the more they have possibility to transform together and have higher transformation rates. In the experiment, the mutants are of Streptococcus pneumonia whichshowed transformation and give different variants.

c.

Summary Introduction

To find:

The reason for which the rate of cotransformation for all three genes (M S F) is almost the same as the rate of cotransformation for M F alone.

Introduction:

In transformation process, the closer the genes present on a DNA, the more they have possibility to transform together and have higher transformation rates. In the experiment, the mutants are of Streptococcus pneumonia whichshowed transformation and give different variants.