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

然后是配子数分裂，因为它们（配子）是不同的。

The answer lies within the amazing process of meiosis.

答案就在惊人的数分裂过程中。

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

这些结构对数分裂 1 的下胞分裂过程至关重要。

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

然后它们快速通过数分裂 II，它们产的子胞总共有四个圆形精子胞。

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

数分裂 2 的最终结果是产 4 个单倍体胞，n 条染色体；(人类为 23 条)。

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

但是在出的时候，卵母胞停止发育——它们卡在数分裂的第阶段。

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

在数分裂过程中，个胞分裂两次，形成四个子胞。

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

第次胞分裂，即第次数分裂后，配对的同源染色体分离。

Meiosis 1 takes place in following steps: Prophase 1 Prophase 1 is typically the longest phase of meiosis.

数分裂 1 按以下骤进行：前期 1前期 1 通是数分裂的最长时期。

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数分裂期，形成两个较小的单倍体胞，称为次级精母胞。

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

第二次胞分裂，也就是第二次数分裂后，每个染色体的姐妹染色单体分离。

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

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

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

数分裂 2 的四个主要骤是：前期 2、中期 2、后期 2 和末期 2。

The oocyte then quickly completes meiosis II, leaving two daughter cells: the large ovum and a puny second polar body.

然后卵母胞迅速完成数分裂 II，留下两个子胞：大卵子和个微小的第二极体。

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

现在我们可以直接进入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，在数分裂过程中， 即产配子 [3] 的过程中，会发染色体交叉。

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第次数分裂，而个人的中大概只有400个初级卵母胞可以做到。

The secondary oocyte stops in metaphase of meiosis 2, and waits for fertilization as the menstrual cycle transitions into the luteal phase.

次级卵泡会在第二次数分裂中期停止分裂，并且在卵泡期向黄体期转换的时候等待受精。

Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information.

数分裂是个分裂过程，单个胞分裂两次，产四个胞，其中包含半的原始遗传信息。

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

你会记得物学中配子是单倍体胞，这意味着它们只有套染色体，是由数分裂形成的。