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#Question id: 4931


During course of evolution first prototroph was anoxygenic?

#XL - S Microbiology
  1. these are anaerobic         

  2. H2S as a electron donor

  3. absence of chlorophyll b   

  4. Use NADPH as electron donor


Answer:- Option(s): 2


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#Question id: 10681

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#Question id: 14831

#XL - S Microbiology

A spirochete is a member of the phylum Spirochaetota, which contains distinctive diderm gram-negative bacteria, most of which have long, helically coiled cells. Movement of spirochetes occurs by means of structures called 

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