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प्रश्न
What is the formula for trisomy?
विकल्प
2n − 2
2n − 1
2n + 2
2n + 1
MCQ
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उत्तर
Trisomy is represented by the formula 2n + 1, indicating the presence of three copies of a particular chromosome instead of the normal two. This results in 47 chromosomes in humans. Trisomy conditions show variable viability depending on which chromosome is affected; autosomal trisomies 13, 18, and 21 are the most commonly observed in live births.
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