BHU PMT BHU PMT (Screening) Solved Paper-2005

  • question_answer
    The biogenetic law of Haeckel is :

    A)  Omnis vivum-e-vivum

    B)  Omnis cellula-e-cellula

    C)  ontogeny repeats phylogeny

    D)  phytogeny repeats ontogeny

    Correct Answer: C

    Solution :

                     Haeckel propounded "The theory of recapitulation" or "Biogeneric law" which stales that an organism in it's development (ontogeny) lends to repeat the stages passed through by it's ancestors (phytogeny) i.e., ontogeny repeats phylogeny. Virchow proposed "law of cell lineage", according to this law new cells develop from pre-existing cells, i.e., "Omnis cellula-e-cellula". Omne  vivum-e-viva means life comes from pre-existing life or theory of biogenesis. This theory was proved by Pasteur.


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