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NEET AIPMT SOLVED PAPER 1998

  • 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)              Biogenetic law     

    B)              Hardy-Weinberg law

    C)              Lamarck's principle            

    D)              Mendelian principles

    Correct Answer: A

    Solution :

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


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