Pediatrics General 9d1e5c3b Chromosomal anomalies more than 20% is associated with – A Gastroschisis B Omphalocele C Spina Bifida D Cleft Palate High-Yield Explanation Chromosomal abnormalities have been reported in as many as 43% fetuses with omphalocele. The most common being trisomy 13, 18, 21 and Turner syndrome.