NEET Biology Biological Classification And System Of Classification / जैविक वर्गीकरण और वर्गीकरण की प्रणाली Question Bank Self Evaluation Test - Biological Classification

  • question_answer
    If the generation time of a bacterium is 40 minutes and a culture containing \[{{10}^{7}}\] cells/ml is grown for 4 hours, then calculate its population after that period.

    A) \[64\times {{10}^{7}}\]    

    B) \[32\times {{10}^{7}}\]

    C) \[6\times {{10}^{7}}\]                         

    D) \[40\times {{10}^{7}}\]

    Correct Answer: A

    Solution :

    Generation time is 40 minutes. \[\therefore \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\] Number of divisions is \[\frac{240}{40}=6\] Number of bacteria are = \[{{2}^{n}}={{2}^{6}}\times {{10}^{7}}\] \[=64\times {{10}^{7}}\]


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