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2503 Gynaecology & Obstetrics

Aneuploidy, is the most common genetic abnormality, accounting for up to 50% of clinical miscarriages. All are true about aneuploidy, EXCEPT:

A30-40% of trisomy 21, fetus die between 12 weeks and 40 weeks
B50-60% of trisomy 18, fetus die between 12 weeks and 40 weeks
COccurrence of triploidy has no relation with the progression of mother's age
DIn previous pregnancy with trisomy 21 due to non disjunction, the risk in future pregnancy is .75% higher
Gynaecology & Obstetrics
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