Then there is Meiosis for our gametes, because they (gametes) are different.

然后是配子减数分裂，因为它们（配子）是不同的。

The answer lies within the amazing process of meiosis.

答案就在惊人的减数分裂过程中。

During the first cellular division called meiosis I, the chromosomal pairs are separated.

次胞分裂，即次减数分裂后，配对的同源染色分离。

There are two types of cell division: Mitosis and Meiosis.

胞分裂有两种类型：有丝分裂和减数分裂。

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

减数分裂 2 的最终结果是产生 4 个单胞，n 条染色；(人类为 23 条)。

But right around birth, the oocytes stop developing — they get stuck in the first stage of meiosis.

但是在出生的时候，卵母胞停止发育——它们卡在减数分裂的阶段。

Meiosis 2 Meiosis 2 is the second meiotic division and usually involves equational segregation, or separation of sister chromatids.

减数分裂 2减数分裂 2 是减数分裂的二次分裂，通常涉及相等的分离，或姐妹染色单的分离。

During meiosis, one cell divides twice to form four daughter cells.

在减数分裂过程中，个胞分裂两次，形成四个子胞。

In the second cellular division called meiosis II, the sister chromatids of a given chromosome are separated.

二次胞分裂，也就是二次减数分裂后，每个染色的姐妹染色单分离。

They then rush through meiosis II, and their resulting daughter cells total four round spermatids.

然后它们快速通过减数分裂 II，它们产生的子胞总共有四个圆形精子胞。

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

这些初级精母胞随后进入减数分裂期，形成两个较小的单胞，称为次级精母胞。

Similar to mitosis, cells also pass through the Interphase, G1, S and G2 phase before they enter Meiosis.

与有丝分裂相似，胞在进入减数分裂之前也经历了间期、G1、S 和 G2 期。

Telophase 1 The first meiotic division effectively ends when the chromosomes arrive at the poles.

末期 1当染色到达两极时，次减数分裂有效地结束。

This tells the secondary oocyte to get ready to complete its second meiotic division.

这告诉次级卵母胞准备完成二次减数分裂。

Now we can go straight onto meiosis and the Kreb cycle.

现在我们可以直接进入减数分裂和克雷布循环。

To put it simply, during meiosis, the process in which gametes[3] are created, chromosomal crossover occurs.

简而言之，在减数分裂过程中， 即产生配子 [3] 的过程中，会发生染色交叉。

To do this, the primary oocytes have to complete meiosis 1, and in a person's lifetime only about 400 successfully do that.

要变成配子就必须要经历次减数分裂，而个人的生中大概只有400个初级卵母胞可以做到。

The four main steps of meiosis 2 are: prophase 2, metaphase 2, anaphase 2, and telophase 2.

减数分裂 2 的四个主要步骤是：前期 2、中期 2、后期 2 和末期 2。

These structures are critical for the process of cell division in next step at meiosis 1.

这些结构对减数分裂 1 的下步胞分裂过程至关重要。

Here are the distinct phases of meiosis: INTERPHASE MEIOSIS 1 CYTOKINESIS 1 MEIOSIS 2 CYTOKINESIS 2.

减数分裂的不同阶段是：间期，减数分裂 1，胞质分裂 1，减数分裂 2，胞质分裂 2。