Average reproductive life span of ovum is: (A) 6-12 hrs, (B) 12-24 hrs, (C) 24-26 hrs, (D) 48 hrs
Answer is B. LH surge occurs ~ 36 hours before ovulation LH peak occur ~ 12 hours before ovulation & marks the release of Ist polar body. This mature oocyte (ovum) remain ble for feilization for ~ 24 hours.