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NEET Biology Reproduction In Organisms Question Bank Self Evaluation Test - Reproduction in Organisms

  • question_answer
    In a grafted plant, stock has 48 chromosomes while scion has 24 chromosomes. The chromosome number for root cells and eggs are:

    A) 48 and 24        

    B)        24 and 24

    C) 24 and 12        

    D)        48 and 12

    Correct Answer: D

    Solution :

    [d] Roots are produced from stock. Stock is diploid so the number of chromosomes in root cells of stock is 48. But egg is haploid, so in egg, chromosome number will be 12 [as scion forms shoot system and its chromosome number is 24 (haploid)].


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