<prompt> Pataus syndrome due to -Trisomy 21Trisomy 1818 PTrisomy 13  <response>: Ans. is d i.e., Trisomy 13 Trisomv 13 Pataus syndromeHead FaceChestExtremitieso Scalp defects cutis aplasia o Congenital heart diseaseo Overlapping of finger o Microphthalmia, comealVSD, PDA, ASD in 80toes Clinodactyly, polydactylyabnormalitieso Thin posterior ribs missingo Hypoplastic hyperconvexo Cleft lip palate 60-80ribsnailso Microcephaly o Sloping head o Hoioprosencephaly o Capiiary hemangioma o Deafness o Severe developmenal delays prenatal, postnatal growth retardation renal abnormalities is seen in trisomy 13.o Only 5 patients of trisomy 13 live more than 6 months. 