Down syndrome is directly linked to a genetic abnormality of chromosome?
A . XXII
B . XXI
C . XIIX
D . XV
Answer: B
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Down syndrome is directly linked to a genetic abnormality of chromosome?
A . XXII
B . XXI
C . XIIX
D . XV
Answer: B
Latest And Valid Q&A | Instant Download | Once Fail, Full Refund