NEET Biology Principle Of Inheritance And Variation Question Bank Chromosomes and Genes

  • question_answer
    Whereas the number of chromosomes is reduced to half in first reduction division of meiosis, then what is the need for second mitotic division  [MP PMT 2001]

    A) For the segregation of replicated chromosomes

    B) For equal distribution of haploid chromosomes

    C) For the formation of four gametes

    D) For equal distribution of genes on chromosomes

    Correct Answer: A

    Solution :

    The reduction of DNA content does not occur in meiosis-I. Truely haploid nuclei in terms of DNA contents as well as chromosomes number are formed in meiosis-II. When the chromatids of each chromosome are separated in to different nuclei. Thus meiosis-II is necessary.


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