| 1. | To bypass this impediment an almost mature egg cell is removed surgically .
为了克服这一障碍，通过手术，取出一个差不多成熟的卵细胞。 |
| 2. | The mature egg is then released in the phase known as ovulation around day 12
随后，一个成熟的卵子会在被称为“排卵期”的阶段释放出来。 |
| 3. | Thirty percent of the gynogens were fertile which possessed the normal ovary and produced normal mature eggs
在第二年检测发现3070的雌核发育鱼是可育的，具有正常的卵巢，能产生成熟的卵子。 |
| 4. | S . oogenesis oogenesis can be devided into four stages : oogonia , provitellogenic oocytes , vitellogenic oocytes and mature egg . the chromatin in oogonia nucleus is in the shape of electron - densed granules
卵子发生卵子发生可分为卵原细胞、卵黄发生前的卵母细胞、卵黄发生的卵母细胞、成熟卵细胞四个阶段。 |
| 5. | 4 . mature egg mature egg is composed of egg membrane , egg plasmic membrane , oo [ lasm and nucleus . egg membrane is an electron - densed strap - shaped structyre close to plasmic membrane , which is 1 . 4 urn thick and there is space between plas
成熟卵细胞由卵膜、卵质膜、卵质、细胞核四部分组成。卵膜为紧靠卵质膜的一条电子致密的带状结构，厚约1 4pm ，与卵质膜间无空隙。 |
| 6. | Although mature eggs and sperm normally have only half the genetic material of a typical body cell , to prevent an embryo from having a double set of genes following conception , eggs halve their genetic complement relatively late in their maturation cycle
在正常的状况下，为了避免受精后胚胎含有双份基因，成熟的卵子和精子各携带体细胞一半的遗传物质，但是卵子只有在快要成熟的时候才会减半其遗传物质。 |
| 7. | During male gametogenesis , the spermatogonia became primary spermatozoa through mitosis , and then became fourth equivalent cytoplasm , round sperm through meiosis . after maturation , they participated in embryo development with the mature oocyte through fertilization . but in female gametogenesis , the primary oocyte formed a matured egg and 1 ~ 3 polar bodies ( pb )
雄性动物精子发生过程中精原细胞最后一次有丝分裂形成二倍体精母细胞后，经过两次减数分裂形成了四个含等量细胞质、圆形的精子细胞，最终发育成四个具有正常生理功能的精子，与成熟卵母细胞受精后参与胚胎发育。 |
