12th Class Biology Sample Paper Biology - Sample Paper-8

  • question_answer
    Why is pedigree analysis done in humans? List two reasons why the Mendelian experiments cannot be carried out in human beings.

    Answer:

    (i)  The pedigree analysis can be defined as the analysis of traits in several generations of a family. The pedigree of Haemophilia, discovered by Haldane, in the descendants of Queen Victoria is a popular case of such analysis.
    (ii) The common Mendelian experiments are not possible in humans because
    (a) Generation period is long.
    (b) Progeny of a couple is small. 


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