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AIIMS AIIMS Solved Paper-2007

  • 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 by approximated?

    A) Biogenetic law

    B) Hardy-Weinberg law

    C) Lamarcks principle

    D) Mendelian principles

    Correct Answer: A

    Solution :

    Biogenetic law was propounded by Ernst Haeckel in 1860. According to it, during its development of an animal passes through ancestral adult stages.


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