Which of the following is the most common cause of 1st-trimester abortions :
Ans- B Aneuploidy Overall most common cause- Aneuploidy Most common cause among Aneuploidy types- Trisomy If both Trisomy and Aneuploidy are mentioned - Aneuploidy is the best answer since Trisomy is a type of Aneuploidy.
Chromosomal deletions
Aneuploidy
Chromosomal translocation
Tetraploidy