| 1. | Fertilization : only one sperm cell penetrates the outer layer of the egg cell
受精：只有一个精子穿透卵子的外层。 |
| 2. | The cancer can affect one or both ovaries , the organs that produce eggs
癌症可以影响一边生产卵子的卵巢或两边都影响。 |
| 3. | Additional , ovarian return bear to wear every months eduction the responsibility of an ovum
另外，卵巢还肩负着每月排出一个卵子的责任。 |
| 4. | First it was discovered that he had not been truthful about where he got the human eggs for the research
首先，有人发现他的研究中用到的卵子的来源值得怀疑。 |
| 5. | The head of the sperm cell and the nucleus of the egg cell then unite and form a new cell : the zygote
然后，精子的头和卵子的核融合，形成一个新细胞：受精卵。 |
| 6. | Where they modified the recipe was the method for moving the dna from the animal - to - be - cloned into the egg
他们对该方法的修改是：改进了将需要克隆的动物的dna移入卵子的方法。 |
| 7. | In the follicular phase , a dominant ovarian follicle which is a sack that contains the ova , or egg grows , becoming ready to ovulate
在卵泡期follicular phase内，一个占优势的卵泡就像一个装着卵子的大口袋准备好将要排卵。 |
| 8. | In experiments ， an injection of cytoplasm from dextral eggs changes the pattern of sinistral eggs ， but an injection from sinistral eggs does not influence dextral eggs
用取自左旋卵子的细胞质进行的注射却不能影响到右旋卵子。 |
| 9. | The standard method for freezing women ' s eggs is to add an alcohol called ethylene glycol to the egg in order to preent the formation of ice crystals
冻结卵子的标准方法是在卵子里增加一种叫乙二醇的乙醇，它的作用是防止结晶的形成。 |
| 10. | The standard method for freezing women ' s eggs is to add an alcohol called ethylene glycol to the egg in order to prevent the formation of ice crystals
冻结卵子的标准方法是在卵子里增加一种叫乙二醇的乙醇，它的作用是防止结晶的形成。 |
