These primary spermatocytes then go into meiosis I, and form two smaller haploid cells called secondary spermatocytes.

这些初级精母细胞随后进入减数分裂一期，形两个较小的单倍细胞，称为次级精母细胞。

The end result of meiosis 2 is production of four haploid cells, n chromosomes; (23 in humans) .

减数分裂 2 的果是产生 4 个单倍细胞，n 条染色；(人类为 23 条)。

The microtubules that make up the spindle network disappear, and a new nuclear membrane surrounds each haploid set.

组网络的微管消失，每组单倍周围都有一层新的核膜。

These four daughter cells only have half the number of chromosomes than the parent cell; they are haploid.

这四个子细胞的染色数目只有母细胞的一半；它们是单倍。

A genome is the haploid set of chromosomes in a gamete, or microorganism, or each cell of a multicellular organism.

基因组是指配子、微生物或多细胞生物每个细胞中的单倍染色组。

Those are called haploid cells and we have four of those in meiosis.

那些叫做单倍细胞，在减数分裂中我们有四个这样的细胞。

How do we go from a diploid cell eventually to a haploid cell?

我们是如何从二倍细胞变单倍细胞的？

You'll remember from biology that gametes are haploid cells, meaning that they only have one set of chromosomes, and are formed by meiosis.

你会记得生物学中配子是单倍细胞，这意味着它们只有一套染色，是由减数分裂形的。

Nuclear envelopes reform and cleavage or cell plate formation eventually produces a total of four daughter cells, each with a haploid set of chromosomes.

核膜的改造和分裂或细胞板的形产生四个子细胞，每个子细胞都有一组单倍染色。

And so the cell cycle will take a diploid cell make two diploid cells in mitosis or make four haploid cells in meiosis.

细胞周期会将一个二倍细胞通过有丝分裂产生两个二倍细胞，或者通过减数分裂产生四个单倍细胞。

In meiosis we're going to take a normal diploid cell and we're actually going to make a haploid cell, we're going to make sperm and egg.

在减数分裂过程中， 我们会从一个正常的二倍细胞开始， 制造出单倍细胞，即精子和卵子。

And so eventually what you get on this side are, instead of having ones that are haploid, you'll actually have some that could even be 4n or 3n or 2n on this side.

因此， 在这边得到的，不再是那些单倍的，实际上会有一些甚至可以是四倍、三倍或二倍的。