At what point does the secondary oocyte complete meiosis?
1. when acrosomal enzymes begin to break down the egg's jelly coat
2. when the luteinizing hormone triggers ovulation
3 after it is penetrated by a sperm cell
4. when the secondary oocyte implants in the endometrium of the uterus
(3) Secondary oocyte that is released at ovulation is arrested at metaphase ll of meiosis. This division is completed when the sperm enters it that leads to release of the send polar body.