Down syndrome is trisomy...., Edwards syndrome is trisomy..... And Patau syndrome is trisomy......

Options :
  1. 18, 13, 21
  2. 21, 18, 13
  3. 21, 13, 18
  4. 13, 21, 18

Answer and Explanation :-

Answer: Option 2


Down syndrome is trisomy 21, Edwards syndrome is trisomy 18 and Patau syndrome is trisomy 13.

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