因此，近年来人们开始探讨人工控制卵母细胞核成熟，以提高卵胞质成熟度。
Therefore, people begin to attempt to inhibit nuclear maturation of oocytes, to improve oocyte quality.
供体细胞核移入去核的卵母细胞后，必定要经过表观遗传修饰的重编程过程，回到胚胎开始发育的全能状态。
The donor nucleus must experienced the epigenetic modification of the process reprogramming and went back to the initial state after the donor cell was injected into the oocytes.
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