Gynaecology & Obstetrics The following are related to corpus luteum except A Luteinised granulosa cells produce progesterone B Estrogen continues to be produced by the luteinised theca cells C Luteolysis is due to estrogen, PGF2a and endothelin D The peak steroid production is between 23 and 25th day 💡 Explanation The following are related to corpus luteum except ✓ Correct Answer: D. The peak steroid production is between 23 and 25th day