Now, the top is different from the bottom because the sperm came in this side physically and not the other side.
现在,细胞上半部分和下半部分不同了,因为精子如果从一边进入卵子,就不会再从另一边进入了
Has only half of the diploid chromosomal content that most of the cells, which are called somatic cells in our body have.
卵子中只含有我们机体一半的染色体,二倍体基因组中一半的染色体,这些二倍体细胞称为体细胞
So on the personality theory, I did not exist when that fertilized egg came into being, when the egg and the sperm joined.
所以在人格理论上,卵子受精的时候我还不存在,卵子和精子结合时。
One copy of the chromosome comes from the egg and one copy of each chromosome comes from the sperm, so this you know about.
其中一条染色体来自卵子,另一条来自精子,这些你们都知道
We started the discussion talking about the zygote or the fertilized egg.
我们是从,受精卵或者受精卵子说起的
The zygote or this fertilized egg is a completely undifferentiated cell.
受精卵,或者说已受精的卵子,是一个完全未分化的细胞
An egg is an example of a germ cell.
而卵子是一种生殖细胞
You know that the ovary produces an egg.
你们知道,卵巢产生卵子
This one cell, this one fertilized cell which is unique because it's the - its chromosome contains the combination of the sperm and the egg, develops into an embryo and then on birth develops into a human.
这个受精卵,是独一无二的,因为它的染色体,包含了精子和卵子的组合,并由此发育成为一个胚胎,之后形成一个人类个体
And that certainly wasn't true way back at the start of A, as the fertilized egg first begins to split and multiply, subdivide and make organs.
显然不是在A阶段这么早就开始的,当受精的卵子开始分裂繁殖,继续分裂,形成器官。
The sperm - say this is the one sperm cell that's able to inject its DNA into the egg, well then this cell has a polarity.
假设某个精子细胞,成功向卵子注入了自己的DNA,那这个细胞就有了极性
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