来自《耶鲁大学开放课程：生物医学工程探索 第6集 第6集》
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embryonic development, and show you a picture here.先说胚胎发育 这里有张图 -
This is a picture of the female reproductive tract.这是一张女性生殖系统的图片 -
This is the uterus down here,这里是子宫 -
sort of half of it is shown with the uterine wall,基本上半个子宫 包括子宫壁都在这里 -
the fallopian tubes, and the ovaries.这是输卵管 这是卵巢 -
You know that the ovary produces an egg.你们知道 卵巢产生卵子 -
An egg is an example of a germ cell.而卵子是一种生殖细胞 -
Has only half of the diploid卵子中只含有我们机体一半的染色体 -
chromosomal content that most of the cells,二倍体基因组中一半的染色体 -
which are called somatic cells in our body have.这些二倍体细胞称为体细胞 -
Germ line cells sperm and egg生殖细胞 包括精子和卵子 -
are produced by the process of myosis,都经由减数分裂形成