Which of the following theory is supported by the genomic sequence of the obligate intracellular parasite Rickettsia prowazekii ?

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Which of the following theory is supported by the genomic sequence of the obligate intracellular parasite Rickettsia prowazekii ? Answer: Mitochondria have evolved from endosymbiotic bacteria

Question context

This question is part of 🦠 Microbiology within the broader 🧬 Medical Science subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.