Once the ovum is released it has a lifespan of 12 to 36 hours.卵子排出后可存活12至36小时。By day 11 the ovum begins to attach and implant in the lining of the uterus.到第11天卵子着床嵌入子宫内壁.One way is taking the cell from a fertilized ovum....
Once the ovum is released it has a lifespan of 12 to 36 hours.卵子排出后可存活12至36小时。an immature ovum未成熟的卵细胞One way is taking the cell from a fertilized ovum.一种方法是从受精卵中取出细胞.By day 11 the ovum begins to attach and implant in the...