Sister chromatids remain attached during telophase 1.

染色单在末期 1 保持附状态。

The cell membrane pinches to separate the two sets of chromatids into two cells.

细胞膜挤压将两组染色单分离成两个细胞。

The spindle fibers shorten and the centromere divides, so each chromosome becomes two separate chromatids.

纺锤丝缩，丝粒分裂，所以每个染色变成两个独立的染色单。

Chromatid is the word we use to describe the newly copied chromosome: the identical copies.

染色单是我们用来描述新复制的染色的词：相同的副本。

The sister chromatids by convention are now called sister chromosomes as they move toward opposing poles.

按照惯，染色单现在被称为染色，因为它们朝向相反的两极移动。

The DNA is exactly replicated, and each chromosome now becomes two identical chromatids joined by the centromere.

DNA 被精确地复制，每条染色现在变成两条由丝粒连接的相同染色单。

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

第二次细胞分裂，也就是第二次减数分裂后，每个染色的染色单分离。

That donor DNA will act like a sister chromatid as a reference to recreate the lost genetic information.

该供DNA会像染色单一样，作为重建遗传信息的参考。

This is followed by anaphase 2, in which the remaining centromeric cohesion is cleaved, allowing the sister chromatids to segregate.

紧随其后的是后期 2，在这一阶段，丝粒纵裂，染色单分离。

At this stage, non-sister chromatids may cross-over at points called chiasmata (plural) , (singular: chiasma) .

在这个阶段，非染色单可能会交叉。

As a result, a double-stranded break on one of the chromosomes can be repaired by using the sister chromatid.

所以，一条染色上的双链断裂可利用其染色单进行修复。

Non-sister chromatids of homologous chromosomes may exchange segments over regions of homology.

同源染色的非染色单可以在同源区域交换片段。

Anaphase 1 Kinetochore microtubules shorten, pulling homologous chromosomes, which consist of a pair of sister chromatids, to opposite poles.

后期 1动粒微管变，将由一对染色单组成的同源染色拉向相反的两极。

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 是减数分裂的第二次分裂，通常涉及相等的分离，或染色单的分离。

Each daughter cell now has half the number of chromosomes but each chromosome consists of a pair of chromatids.

现在每个子细胞都有一半的染色，但每个染色都由一对染色单组成。

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染色染色单在第二次减数分裂时没有分离。

In prophase 2, we see the disappearance of the nucleoli and the nuclear envelope again as well as the shortening and thickening of the chromatids.

在前期 2，我们看到核膜消失，染色单变变厚。

Early on in meiosis the germ cell makes a copy of all of its chromosomes with each chromosome having sister chromatids at that point.

减数分裂早期，生殖细胞会复制原先的染色，复制完毕后，所有的染色都有染色单。

The paired and replicated chromosomes are called bivalents or tetrads, which have two chromosomes and four chromatids, with one chromosome coming from each parent.

配对和复制的染色被称为二价（也称为四分），它们有两条染色和四个染色单，每个亲本都有一条染色。

So now End 1 is placed near a similar nucleotide sequence, called the homologous sequence, because it's found in the same spot on the homologous sister chromatid.

现在End 1位于一段相似核苷酸序列附近；这段序列被称为同源序列，位于同源染色单上的相同位点。