卵子

In human reproduction,one female egg is usually fertilized by one sperm.

人体生殖过中,一个精使一个受精。

Only one sperm fertilises an egg.

只有一个精使受精。

The fish, smallmouth and largemouth bass, were male but neertheless carried immature eggs.

这小口黑鲈和黑鲈为雄性，却带有未成熟。

To a certain degree, sperm head membrane maybe is the key factor to the androgenesis of the gynogenetic silver crucian carp eggs.

度上表明：精膜蛋白可能是雌核发育银鲫进行雄核发育关键因素。

The secondary oocyte now divides again into two new cells of unequal size: a relatively large ootid (mature egg cell) and a minute second polar body.

此时，次级母细胞又分裂成两个大小不对等新细胞：一个相对很大（成熟细胞）和一个微小次级极体。