In high dosage, the treated group has less pathological change, and the average oocyst number is clearly higher than that of the control group.
较高剂量下，处理组病变略轻，而平均卵囊数明显高于未处理对照组。
2
Wilmut said there were so many failures because it was difficult to ensure that the empty oocyst and the donor cell were at the same stage of the cell division cycle.