【chromatid】 - A-level备考词汇

chromatid

UK:  ['krəʊmətɪd]

US:  ['kroʊmətɪd]

复数：chromatids  

n.

1.染色半体

2.染色分体

3.【生物学】染色单体

1 . The standard practice is to call the entire structure a chromosome and each of its strands a sister chromatid.
标准的做法是把整个结构称为一个染色体，而把它的各条称为姐妹染色单体。

2 . Cross took place in between the two non-sister chromatid.
交叉发生在两条非姊妹染色单体之间。

3 . The central axial area of each chromatid is a low electronic density region or chromatin free compartment , in which there are lots of RNP.
在染色体横切面中，可见染色体中央有一低电子密度的无染色质区，该区内有大量RNP物质。

4 . Roundup causes increased frequency of sister chromatid exchanges in human lymphocytes (white blood cells), even at the lowest dose tested.
草甘膦除草剂农达在人类淋巴细胞（血液白细胞）中增加了发生姐妹染色体的频率，即便在试验的最低剂量。

5 . Reach the poles, n the number of sub-chromosome, and each sub-chromosome composition of only one chromatid.
到达两极的子染色体为n数，并且每条子染色体只由一条染色单体构成。