NEET AIPMT SOLVED PAPER SCREENING 2012

  • question_answer
    Which one of the following options gives one correct example each of convergent evolution and divergent evolution?

    A) Convergent evolution                                                                   Divergent evolution Eyes of Octopus and mammals                                                  Bones of forelimbs of vertebrates

    B) Thorns of Bougainvillia and tendrils of Cucurbits                 Wings of butterflies and birds

    C) Bones of forelimbs of vertebrates                                           Wings of butterfly and birds

    D) Thorns of Bougainvillia and tendrils of Cucurbita                                Eyes of Octopus and mammals

    Correct Answer: A

    Solution :

    Convergent evolution involves the independent development of similar structures in organisms that are not directly related. It is represented by analogous organs, e.g., eyes of Octopus and mammals, wings of insects and birds. In divergent evolution, same basic organ becomes adapted by specialization to perform different functions. It is represented by homologous organs, e.g., fore limbs of vertebrates (like seal's flipper, bat's wing, cat's paw horse's front leg and human hand), thorns of Bougainviuia and tendrils of Cucurbita.


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