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  1. Polyploidy arises due to change in the
    1. number of chromatids
    2. structure of genes
    3. number of chromosomes
    4. structure of chromosomes
Correct Option: C

An organism having more than two sets of homologous chromosomes is known as polyploid and the phenomenon polyploidy.Polyploidy refers to a numerical change in a whole set of chromosomes. Polyploidy may occur due to abnormal cell division, either during mitosis, or commonly during metaphase I in meiosis.



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