1. The female reproductive cell or gamete of animals; egg. 卵细胞 雌性再生细胞或动物的配子；
2. Any of our somatic cells and reproductive cells is actually one cell. 我们的任何体细胞和生殖细胞，其实只是一个细胞。
3. They next extracted DNA from a dog oocyte (an immature female reproductive cell prior to fertilization) and injected the fluorescent-modified dog cells into it. 他们接下来从狗的卵母细胞（一个不成熟雌性受精前的生殖细胞）中提取DNA，并将荧光修饰的狗细胞注入其中。
4. All of this is controlled by the endocrine system, the system in charge a lot of our body's processes, from cell and tissue growth and repair to reproductive function and mood regulation. 所有这些都有人体的内分泌系统来控制，内分泌系统调节我们身体的各种过程，从细胞和组织的生长和修复到生殖功能以及情绪调节。
5. The model suggested that these proteins lose most of their function just as the cell is coming to the end of its reproductive life. 此模型显示，细胞生殖生命将尽之时，这些蛋白也失去大部分功能。
