Question

Why was finding a close relationship between mitochondrial DNA and bacterial DNA considered particularly strong evidence in favor of the endosymbiosis theory

Answer 1

Endosymbiosis theory: It confirmed a fundamental prediction made by the hypothesis and have great evidences and could not be explained by any alternative hypothesis.

Step-by-step explanation:

Both bacteria and mitochondrial DNA are in circular form.

Both bacteria and mitochondria contain 70S chromosome, both have their own replicating machinery.

According to endosymbiosis theory :

The host cell provided a protected environment and carbon compounds for the endosymbiont; and in return ,the endosymbiont provided increased ATP from the carbon compounds.