Edward syndrome is: (A) Trisomy 13, (B) Trisomy 18, (C) Trisomy 21, (D) Trisomy 20
Answer is B. Edward syndrome is trisomy 18 . It is due to non dysfunction of chromosomes during meiosis Trisomy 21 is down symdrome and trisomy 13 is patau syndrome. Reference: Nelson TB of pediatrics pg 404 edi 19.