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Koch's Postulates and Molecular Genetics

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I understand that Koch's postulates have limitations, but I don't understand how that plays a role in molecular genetics.

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Given the limitations of Koch's postulates, what role do you see for molecular genetics and associated techniques in addressing the exceptions to the postulates?

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Solution Summary

Several paragraphs examining Koch's postulates, their limitations and the role of molecular genetics in addressing these limitations.

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Koch's postulates are as follows:
1. The microorganism must be found in abundance in all organisms suffering from the disease, but not in healthy organisms.
2. The microorganism must be isolated from a diseased organism and grown in pure culture.
3. The cultured microorganism should cause disease when introduced into a healthy organism.
4. The microorganism must be re-isolated from the inoculated, diseased experimental host ...

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