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18-05-2021
Biology

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What is Down’s syndrome? What is it the result of? What would its karyotype look like?

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18-05-2021

Answer:

The trisomy 21 karyotype figure shows the chromosomal arrangement, with the prominent extra chromosome 21. Trisomy 21 is the cause of approximately 95% of observed Down syndrome, with 88% coming from nondisjunction in the maternal gamete and 8% coming from nondisjunction in the paternal gamete.

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