Gynaecology & Obstetrics The chromosomal complement in persons with Klinefelter’s syndrome is: March 2011 A 45, XO B 47, XXX C 46, XY D 47, XXY 💡 Explanation The chromosomal complement in persons with Klinefelter's syndrome is: March 2011 ✓ Correct Answer: D. 47, XXY