减数分裂的

Meiosis, which occurs only in the formation of gametes, is a specialized form of cell division.

仅仅发生在配子形成中的减数分裂是一种特殊形式的有丝分裂。

Meiosis, which occurs only in the formation of gametes, is a specialized form of cell division

仅仅发生在配子形成中的减数分裂是一种特殊形式的细胞分裂。

Meiosis is the cell division to form gametes that have half the chromosome number of the parent cell.

减数分裂是一种形成只有半数染色体数目的配子的细胞分裂。

Centromere The region of the chromosome that contains the kinetochore, the structure that becomes attached to the nuclear spindle during mitosis and meiosis.

着丝粒：染色体上包含着丝点的区域，在细胞有丝分裂和减数分裂期间与纺锤体相整合的一种结构。

Meiosis, which occurs only in the form ation of gametes, is a specialized form of cell division

仅仅发生在配子形成中的减数分裂是一种特殊形式的细胞分裂。

However, accidental changes in DNA methylation can be transmitted through mitosis or meiosis, leading to epiallelic variation.

但是，DNA甲基化的意外变化能够通过有丝分裂或减数分裂，导致表观变异。

However,the ratio ofunivalent misdivision was about 10 per cent.This wouldoffer the posibility to creat whole arm chromosometranslocation.

然而，发现在减数分裂时，单价体错分裂频率达到10%左右，为产生染色体整条臂的相互易位提供了可能。

Small cell of the mother after the cytoplasm of simultaneous type, tetrad of epidermis, mature pollen of two cell types.

小孢子母细胞减数分裂后胞质分裂为同时型，四分体为四面体型排列，成熟的花粉粒为二细胞型。

Tetraploid organisms may arise by the fusion of two diploid gametes that have resulted from the nondisjunction of chromosomes at meiosis, or by nondisjunction of the chromoosomes during the mitotic division of a zygote.

四倍体的产生可能是由于两个二倍体配子发生融合，这种二倍体配子又是在减数分裂中染色体不发生分离而形成。四倍体也可能因为受精卵进行有丝分裂时染色单体未发生分离而形成。

In mixoploid plants, somatic cells with 2n=25~29 were most frequent except for a few haploid cells (2n=19) and chromosome doubling cells (2n=50~60). Abnormal chromosome behaviors were observed in pollen mother cells from mixoploid BI-1 and haploid, including chromosome bridges, laggard chromosomes, meiotic cycle asynchrony and unequal separation of chromosomes.

对混倍体植株BI-1和单倍体植株的花粉母细胞(Pollen mother cells，PMCs)减数分裂染色体行为观察发现，高频率出现染色体落后、染色体桥、染色体分裂周期不同步、不均等分离等异常染色体行为。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。