Which among the following is the most common chromosomal anomaly encountered in spontaneously aboed foetuses?: (A) Trisomy 13, (B) Trisomy 18, (C) Trisomy 21, (D) Trisomy 16
Answer is D. Among the spontaneously aboed foetuses, autosomal trisomies are the most common chromosomal caus. Within this category, trisomy 16 is the most frequent The recurrence risk of trisomy 16 is negligible in subsequent pregnancies