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The fourteen meter-long skeletal remains of a sperm whale hang directly above it.
VOA: special.2011.06.29
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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
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This sperm has gained quite a vocabulary, and it includes this line: "I have seen the best swimmers of my generation go under.
这个精子词汇量很大啊，它总结如下：,我曾见过这代人中最好的泳者沉底。
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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。
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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
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Yes. A sperm. Did everyone get that? No. Okay.
对了 一个精子 大家都明白了吗 没有 好吧。
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The crucial point in thinking about this is to realize that every time you combine a different egg with a different sperm ? you end up with a different person, right?
考虑这个问题的关键一点是,明白每一次,你把一个不同的卵细胞和一个不同的精子结合,都会产生一个不同的人，对吗？
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Now, why have a story with a sperm as a narrator?
为什么要把精子作为叙述者呢？
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The other germ line cell is the sperm cell.
另一种生殖细胞是精子细胞
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A sperm?
一个精子？
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The result of fertilization now is a new cell that is the union of the sperm and the egg, and it's called the zygote and it contains the diploid number of chromosomes, genes.
受精就是产生,一个精卵结合的新细胞,称为受精卵,它含有二倍体的染色体基因
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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
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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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