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CMC Medical CMC-Medical VELLORE Solved Paper-2015

  • question_answer
    In the developmental history of mammalian heart, it is observed that it passes through a two chambered fish-like heart, three chambered frog-like heart and finally four chambered stage. To which hypothesis can this above cited statement be approximated?

    A)  Principle of use and disuse of organs (Lamarkism)

    B)  Mendelian principle

    C)  Recapitulation theory

    D)  Hardy-Weinberg law

    E)  None of the above

    Correct Answer: C

    Solution :

                    The blogenetic law or recapitulation theory states that ontogeny (embryonic development) of an individual repeats phylogeny, i.e. developmental history or genology of the species.


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