Appearance of antibiotic resistance bacteria is an example of -
(A) Adaptive radiation
(B) Transduction
(C) pre existing variation
(D) Divergent evolution.
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divergent evolution is the abswer
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The correct answer is option C- pre-existing variation
It can be defined as a number of bacterial colonies are exposed to a particular antibiotics, those which are sensitive to the antibiotic will die whereas those with mutation developed in them survive the antibiotics. And eventually this resistance provided gene spreads all over and the entire population becomes resistant.
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