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ADA NBDE National Board Dental Part I

Category - NBDE

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Down syndrome is directly linked to a genetic abnormality of what chromosome?

XXII
XXI
XIIX
XV

Explanation

Answer: B - In most cases of Down syndrome, a child gets an extra chromosome 21-for a total of 47chromosomes, instead of 46.

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ADA NBDE National Board Dental Part I

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ADA NBDE National Board Dental Part I

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