a-research-team-is-investigating-a-toxin-gene-believed-to-contribute-to-the-path

Question

A research team is investigating a toxin gene believed to contribute to the pathogenicity of a bacteria. According to molecular Koch's postulates, which approach would directly test the gene's role in causing disease?

Accepted Answer

Replacing the toxin gene in a non-pathogenic strain and observing if it becomes pathogenic

Answer

Analyzing the protein structure of the toxin

Answer

Documenting the symptoms of infected individuals without identifying the specific bacterium

Answer

Studying the bacterium's growth rate in different temperatures

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A research team is investigating a toxin gene believed to contribute to the pathogenicity of a bacteria. According to molecular Koch's postulates, which approach would directly test the gene's role in causing disease?