Banking Biology Genetics Question Bank Genetics and Evolution

  • question_answer
    Which was absent in the atmosphere at the time of origin of life?

    A)  \[N{{H}_{3}}\]                       

    B)  \[{{H}_{2}}\]

    C)  \[{{O}_{2}}\]                   

    D)         \[C{{H}_{4}}\]

    Correct Answer: C

    Solution :

     Oxygen gas was not present due to reducing atmosphere, it only came to existence after the evolution of photosynthesis process.


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