Question
How is aneuploidy different from polyploidy? Mention their causes.
✓
Answer
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S.No
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Aneuploidy
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Polyploidy
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1.
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It is the phenomenon of loss or gain of one or more chromosomes from any pair(s) of chromosomes in a diploid cell/ organism, called aneuploid.
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It is the presence of three or more sets of chromosomes in an organism, called polyploid.
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2.
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It arises due to failure of segregation of members of one more pair(s) of homologous chromosomes.
eg. Down's syndrome, Turner's sydrome, etc.
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It arises due to failure of cytokineses following the telophase stage of cell division.
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3.
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It is found in many plants.
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