EBK LIFE: THE SCIENCE OF BIOLOGY
EBK LIFE: THE SCIENCE OF BIOLOGY
11th Edition
ISBN: 8220103935432
Author: Sadava
Publisher: MAC HIGHER
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Chapter 14, Problem 4Q
Summary Introduction

To review:

The reason behind the restoration of the wild-type phenotype after the fusion of two mutant strains, assuming that the enzyme required to catalyze a pathway has a quaternary structure.

Given:

The enzyme has a quaternary structure and has the α2β2 conformation.

Introduction:

The mutant haploid strains of Neurospora like, Leu-1 and Leu-2, are unable to synthesize leucine because of the lack of enzymes that are required for its synthesis. When two strains are fused together and the diploid organism receives a copy of each enzyme form each parent and is able to restore the wild-type phenotype.

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