And in between these repeats are unique sequences called spacers.

这些重复之间的独特序列被称为" 间隔序列" 。

Animal chromosomes end with a DNA sequence called a telomere.

动物染色体以称为端粒的 DNA 序列结束。

Well, between each repeating section of DNA, there are short sequences of DNA called spacers.

那么，在 DNA 的每个重复部分之间，都有称为间隔区的短 DNA 序列。

Historians undertake to arrange sequences, — called stories, or histories — assuming in silence a relation of cause and effect.

历史学家致力于安排序列，称为故事或历史——默默地假设因果关系。

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，位于同源姐妹染色单体上的相同位点。