meiosis

meiosis

美 [ma??o?s?s]  英 [ma????s?s]

  • n.(細胞的)減數分裂
  • 網絡成熟分裂;細胞減數分裂;減數分裂期

詞形變化

復數:meioses  

英漢雙解

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

英漢解釋

n.
1.
【生】減數分裂,成熟分裂
2.
【語】間接肯定法,曲言法

英英解釋

n.

例句

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

這樣配子可能通過四倍組織或者錯誤減數分裂產生

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

細胞減數分裂準備有絲分裂一樣但是隨著DNA濃縮每個染色體都會與其同源染色體配對

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

減數分裂過程一種特殊形式細胞分裂發生生殖器細胞

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

孢子細胞減數分裂雌花雌蕊繼續發育雄花雌蕊

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

一對成熟分裂過程形成同源染色體

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

植株包含遺傳物質無論偏向哪個親本各自倍性水平未能看出減數分裂過程差異

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

減數分裂產生單倍體生殖細胞分裂組成

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

改變小黑麥細胞質可能增加減數分裂穩定性提高黑麥結實籽粒飽滿

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

此外本文討論孢子細胞減數分裂細胞沉積胼胝質之間相關性

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

減數分裂配對任意一對同源染色體

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

孢子細胞減數分裂同時開始同時結束分裂過程高度不同

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

水稻小孢子細胞花粉進行減數分裂產生孢子孢子進一步發育花粉

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

減數分裂過程同源染色體經歷配對聯會重組精確分離

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

由于細胞核分裂兩次染色體復制一次所以經過減數分裂染色體數目減半

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

配子形成通常發生減數分裂產生單倍體配子染色體正常一半)。

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

發生第一減數分裂后期染色體交叉二價染色體末端移動過程

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

由于減數分裂使生物代代能夠保持二倍染色體數目

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規研究花粉細胞減數分裂行為

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

單倍體-只有一個一套染色體通常減數分裂產生受精卵子

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

染色體數目減半通常發生減數分裂產生孢子往往減數分裂形成單倍體配子

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

減數分裂期間直到分裂后期II染色單體隨著分裂彼此分開詳細

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

柑橘優良品質柑橘三倍由于染色體減數分裂不正常配子因此天然類型

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

萌發接合孢子經歷減數分裂形成單倍體細胞產生植物

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

細胞減數分裂前期同源染色體之間形成接觸

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

這些發現研究減數分裂以及有絲分裂減數分裂調節演變提供基礎

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

減數分裂初期一對同源染色體之間片段遺傳物質互換過程

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

結果表明花粉細胞減數分裂染色體行為異常發生孢子形成之后

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

觀察二、四倍青花菜花粉細胞減數分裂過程分裂時期參數進行統計分析

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

減數分裂發生配子形成時期所以雌雄配子

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

為了跟蹤精子發育他們使用熒光蛋白標記細胞正在發生已經發生減數分裂

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

減數分裂初期染色質核子一側緊縮

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

孢子細胞減數分裂分裂連續孢子四面體

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

有絲分裂減數分裂前期存在染色體念珠著色結構

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

有絲分裂或者減數分裂過程染色單體分別相反兩極運動詳細

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

現象減數分裂交叉結果之間遺傳信息交流染色體

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

方法采用哺乳動物生殖細胞減數分裂制片技術觀察細胞減數分裂變化

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

形成出現核仁經過細胞質分裂完成減數分裂過程

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

證明Y染色體基因對于細胞減數分裂精子成熟至關重要

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

這些結果闡明PAIR1蛋白水稻減數分裂同源染色體配對過程發揮關鍵作用

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

因此減數分裂出錯的話導致不育生育缺陷主要原因