IGNOU MBC 8 2025 2026 - Describe the human diseases arising due to variation in chromosome num

Question

Describe the human diseases arising due to variation in chromosome number.

18 Sep 2025

Answer :

Word Count : 240

Human diseases arising from variations in chromosome number, also known as aneuploidies, result from the gain or loss of whole chromosomes during cell division, particularly during meiosis. One of the most well-known examples is Down syndrome, caused by trisomy of chromosome 21, where individuals have three copies instead of the normal two. This extra chromosome leads to characteristic

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