Chapter 27, Problem 7TYU

Summary Introduction

To review:

The reason behind finding a close relationship between mitochondrial DNA (deoxyribonucleic acid) and bacterial DNA considered particularly strong evidence in favor of endosymbiosis theory.

Introduction:

According to the endosymbiotic theory, the mitochondria was formed by the endocytosis of aerobic bacteria by an anaerobic bacterium to survive in the oxygen-rich environment. In order to validate the hypothesis and confirm the phylogenetic relationship between mitochondria and bacteria, their gene sequences were compared.