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

然后是配子减数，因为它们（配子）是不同。

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

减数 2 最终结果是产生 4 个单倍体细胞，n 条染色体；(人类为 23 条)。

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

减数 1 按以下步骤进行：前 1前 1 通是减数最时。

The answer lies within the amazing process of meiosis.

答案就在惊人减数过程中。

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

这些结构对减数 1 下一步细胞过程至关重要。

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

第一次细胞，即第一次减数后，配对同源染色体离。

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

减数 2 四个主要步骤是：前 2、中 2、后 2 和末 2。

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

在减数过程中，一个细胞两次，形成四个子细胞。

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

第二次细胞，也就是第二次减数后，每个染色体姐妹染色单体离。

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

减数 2减数 2 是减数第二次，通涉及相等离，或姐妹染色单体离。

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

简而言之，在减数过程中， 即产生配子 [3] 过程中，会发生染色体交叉。

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减数中停止，并且在卵泡向黄体转换时候等待受精。

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

减数不同阶段是：间，减数 1，胞质 1，减数 2，胞质 2。

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一次减数，而一个人一生中大概只有400个初级卵母细胞可以做到。

The first stage lasts from infancy to puberty, and during this stage the primary oocyte remains stuck in the prophase step of meiosis 1.

第一阶段从婴儿到青春，初级卵母细胞还停留在第一次减数前。

The other option is the sister chromatids of the x chromosome don't separate in meiosis two in the female germ cell.

女性生殖细胞中，X染色体姐妹染色单体在第二次减数时没有离。

This triggers the primary oocyte within the dominant follicle to finally complete meiosis 1, and turn into a secondary oocyte, which has 23 chromosomes.

这使得优势卵泡里初级卵母细胞最终完成第一次减数，变成了有23条染色体次级卵母细胞。

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

减数是一个过程，单个细胞两次，产生四个细胞，其中包含一半原始遗传信息。

Typically a gamete with 23 chromosomes, including one sex chromosome either X or Y, develops when parent germ cells undergo the process of meiosis.

正配子包含23条染色体，其中有一条X或Y性染色体，由亲代生殖细胞减数产生。

Nondisjunction means the chromosomes don't split apart - so following meiosis, one resulting sex cell ends up with both chromosomes and the other gets none.

不离意味着染色体没有开，所以在减数后形成两个细胞中，一个拥有2条染色体，而另一个一条都没有。