the main reason why some bacteria are anaerobes (i.e, they cannot grow in the presence of oxygen) is: (a)transmission of the gene for the pilus protein is repressed in the presence of oxygen (b)they have too much ferrous ion that is oxidized to ferric ion in the presence of oxygen. (c)they have unusual mitochondria that cannot function in the presence of oxygen. (d)transcription of the gene for the pilus protein is repressed in the presence of oxygen (e)they do not have sufficient catalase and superoxide dismutase
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the main reason why some bacteria are anaerobes (i.e, they cannot grow in the presence of oxygen) is: (a)transmission of the gene for the pilus protein is repressed in the presence of oxygen (b)they have too much ferrous ion that is oxidized to ferric ion in the presence of oxygen. (c)they have unusual mitochondria that cannot function in the presence of oxygen. (d)transcription of the gene for the pilus protein is repressed in the presence of oxygen (e)they do not have sufficient catalase and superoxide dismutase
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