meiosis

meiosis

美 [maɪˈoʊsɪs]  英 [maɪˈəʊsɪs]

  • n.(细胞的)减数分裂
  • 网络成熟分裂;细胞减数分裂;减数分裂期

词形变化

复数:meioses  

英汉双解

n.
1.
(细胞的)减数分裂the division of a cell in two stages that results in four cells, each with half the number of chromosomes of the original cell

英汉解释

n.
1.
【生】减数分裂,成熟分裂
2.
【语】间接肯定法,曲言法

英英解释

n.

例句

Such a gamete may be produced by tetraploid tissues, or it may be the result of faulty meiosis.

这样配子可能通过四倍组织或者错误减数分裂产生

The cell prepares for meiosis just as it does for mitosis. But as the DNA condenses, each chromosome finds its homologous counterpart.

细胞减数分裂准备有丝分裂一样但是随着DNA浓缩每个染色体都会与其同源染色体配对

Meiosis is a special form of cell division that takes place in the reproductive organs that produce sex cells.

减数分裂过程一种特殊形式细胞分裂发生生殖器细胞

After meiosis of megasporocyte, pistils of female flowers continued to grow and those of male flowers aborted.

孢子细胞减数分裂雌花雌蕊继续发育雄花雌蕊

One pair of homologous chromosomes resulting from the division of a tetrad during meiosis.

一对成熟分裂过程形成同源染色体

And the meiosis did not show any difference on their ploidy level, no matter which parents the genetic messages were acquired from.

植株包含遗传物质无论偏向哪个亲本各自倍性水平未能看出减数分裂过程差异

Meiosis comprises a pair of specialized nuclear divisions that produce haploid germ cells.

减数分裂产生单倍体生殖细胞分裂组成

The stability of meiosis seed-set rate and plumpness of kernels might be changed when the cytoplasm of a triticale was changed.

改变小黑麦细胞质可能增加减数分裂稳定性提高黑麦结实籽粒饱满

In addition, correlations between the meiosis and callose deposition in the wall of megasporocyte have been discussed.

此外本文讨论孢子细胞减数分裂细胞沉积胼胝质之间相关性

Bivalent Describing any pair of homologous chromosomes when they pair up during MEIOSIS.

减数分裂配对任意一对同源染色体

Microspore mother cells in an anther started but did not end the meiosis at the same time.

孢子细胞减数分裂同时开始同时结束分裂过程高度不同

Within the rice anther, meiosis of the pollen mother cell produces microspores, which further develop into pollen grains.

水稻小孢子细胞花粉进行减数分裂产生孢子孢子进一步发育花粉

During meiosis, homologous chromosomes undergo pairing, synapsis, recombination and faithful segregation.

减数分裂过程同源染色体经历配对联会重组精确分离

As the nucleus divided twice, and chromosomes replicate only once, so halve the number of chromosomes after meiosis.

由于细胞核分裂两次染色体复制一次所以经过减数分裂染色体数目减半

Generally meiosis occurs before gamete formation, resulting in the gametes being haploid (having half the normal number of chromosomes).

配子形成通常发生减数分裂产生单倍体配子染色体正常一半)。

Terminalization The movement of chiasmata to the end of the bivalent arms, a process that may occur during late prophase I of meiosis.

发生第一减数分裂后期染色体交叉二价染色体末端移动过程

Because meiosis, so that each type of organism from generation to generation are able to maintain the diploid chromosome number.

由于减数分裂使生物代代能够保持二倍染色体数目

Cytological studies were conducted on pollen mother cells(PMCs)meiosis of autotetraploid broccoli using chromosome preparation technique.

同源四青花菜材料采用常规研究花粉细胞减数分裂行为

Haploid - Having only one set of chromosomes, usually by meiosis, or resulting from an unfertilized eggs.

单倍体-只有一个一套染色体通常减数分裂产生受精卵子

Meiosis, which usually precedes spore or, sometimes, gamete formation, halves the chromosome number to produce haploid gametes .

染色体数目减半通常发生减数分裂产生孢子往往减数分裂形成单倍体配子

In meiosis it is not until anaphase II that the centromere divides, the chromatids being termed daughter chromosomes after separation.

减数分裂期间直到分裂后期II染色单体随着分裂彼此分开详细

Seedlessness is an elite trait in citrus and triploid citrus is seedless in nature due to the abnormal meiosis and embryo abortion.

柑橘优良品质柑橘三倍由于染色体减数分裂不正常配子因此天然类型

On germination, the zygospore undergoes meiosis to produce haploid cells that give rise to a new thallus.

萌发接合孢子经历减数分裂形成单倍体细胞产生植物

Chiasma (pl. chiasmata) A connection between homologous chromosomes seen during the prophase stage of meiosis.

细胞减数分裂前期同源染色体之间形成接触

These findings provide insights into the evolution of meiosis and kinetochore regulation during mitosis and meiosis.

这些发现研究减数分裂以及有丝分裂减数分裂调节演变提供基础

the interchange of sections between pairing homologous chromosomes during the prophase of meiosis.

减数分裂初期一对同源染色体之间片段遗传物质互换过程

The results showed that the meiosis behavior of pollen mother cell of sterile is normal. Abortion occurred after formation of tetrads.

结果表明花粉细胞减数分裂染色体行为异常发生孢子形成之后

Pollen mother cells(PMC)meiosis and relevant parameters of diploid and autotetraploid broccoli were studied comparatively.

观察二、四倍青花菜花粉细胞减数分裂过程分裂时期参数进行统计分析

Meiosis occurs in gametes before the formation of a certain time, it is a nuclear male and female gametes are single-fold.

减数分裂发生配子形成时期所以雌雄配子

To track sperm development, they used a fluorescent protein that marked cells undergoing--or that had undergone--meiosis.

为了跟踪精子发育他们使用荧光蛋白标记细胞正在发生已经发生减数分裂

the contraction of chromatin towards one side of the nucleus during the prophase of meiosis.

减数分裂初期染色质核子一侧紧缩

The cytokinesis of the microspore mother cells in meiosis is successive and the microspore tetrads are tetrahedral.

孢子细胞减数分裂分裂连续孢子四面体

Chromomere A small beadlike deeply staining structure seen in chromosomes during prophase of mitosis and meiosis.

有丝分裂减数分裂前期存在染色体念珠着色结构

Anaphase The stage in mitosis or meiosis when chromatids are pulled toward opposite poles of the nuclear spindle.

有丝分裂或者减数分裂过程染色单体分别相反两极运动详细

The phenomenon of crossing over during meiosis results in exchanges of genetic information between chromosomes.

现象减数分裂交叉结果之间遗传信息交流染色体

Methods: Using germ cells in meiosis as material to make sections, the changes of meiosis phases of spermatocyte were analyzed.

方法采用哺乳动物生殖细胞减数分裂制片技术观察细胞减数分裂变化

The formation of nuclear membrane, there nucleoli, after cytoplasmic division, the completion of meiosis.

形成出现核仁经过细胞质分裂完成减数分裂过程

This demonstrates that the genes on a Y chromosome are essential for meiosis and sperm maturation.

证明Y染色体基因对于细胞减数分裂精子成熟至关重要

These observations clarify that the PAIR1 protein plays an essential role in establishment of homologous chromosome pairing in rice meiosis.

这些结果阐明PAIR1蛋白水稻减数分裂同源染色体配对过程发挥关键作用

Therefore, defects in meiosis are a leading cause of both infertility and birth defects.

因此减数分裂出错的话导致不育生育缺陷主要原因