减数分裂的

C-banding and In-situ hybridization analyses of Ag.intermedium,a partiai wheat/Ag.intermedium amphiploid,and six derived chromosome addition lines 《TAG》 Friebe

八倍体小偃麦的形成，减数分裂稳定性和染色体组型的分析《作物学报》管启良 1980 // 03 P 129-137小偃麦新品种与中间类型的选育，程序和方法《作物学报》孙善澄

Apospory The devlopment of the gametophyte directly from the cell of a sporophyte, thus bypassing meiosis and spore production.

无孢子生殖：配子体的发育直接来自孢子体的细胞而不经过减数分裂和孢子产生的生殖过程。

Our data support the notion that human follicle development can be achieved in vitro in a bio-engineered culture system.

结论我们的数据表明，人类卵泡在体外生物工程培养体系中是可以发育的，但仍需要更多的研究进一步揭示体外培养卵泡是否获得充分大小的卵母细胞，而且卵母细胞是否有能力恢复减数分裂和受精。

In Peiai 64S, the microtubules showed abnormal patterns of distribution from pre_meiotic interphase to metaphase Ⅰ. For example the broad band of perinuclear microtubules seen at diakinesis in IR36 was much disorganized and loosened in Peiai 64S.

(1)在偶线期具极性分布的微管分布不存在；(2 )在小孢子母细胞减数分裂期间的细胞内出现许多特别粗的微管束；(3)在终变期围绕核的微管宽带结构松散及内含微管密度低。

There are nine bivalents in pollen mother cells at late diplotene or early diakinesis, and the homologous chromosomes essentially arrange on the equatorial plate at late metaphase Ⅰor early anaphase Ⅰ, then the two homologous chromosomes of each bivalent separate from each other and move to two opposite poles drawn by spindle fibers.

在减数分裂双线期末或终变期初，可以观察到9个二价体，在中期I末至后期I初，同源染色体基本排列在赤道板上，然后在纺锤丝的牵引下二价体的两条同源染色体分开，分别移向两极，每一极有9条染色体，从而确认该属植物的染色体基数为x=9。

Centromeres could be identified easily on the bivalents at diplotene, so it was convenient to analyse the karyotype.

结果表明，日本沼虾染色体数n=52，2n=104，据双线期二价体的相对长度、着丝点位置以及形态诸方面的特点分析了核型，共分为A，B，C，D4个染色体组，核型组成是N=37M+4ST+11T；初级精母细胞减数分裂前期I可分为细线期/偶线期、粗线期、双线期和终变期5个时期，双线期的二价体存在弥散阶段，核仁明显，且双线期二价体着丝点清晰，给核型分析带来了方便。

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

这样的配子可能是通过四倍体组织或者是错误的减数分裂产生的。

The journal covers the research advances of the dynamics and mechanisms of sexual processes in all plants, including meiotic mechanisms, male and female gametogenesis and their related gene expression, fertilization mechanisms, gamete recognition, control of early embryogenesis and biotechnological applications in sexual reproduction etc.

该杂志涵盖了所有植物有性繁殖过程的动力学与机制的研究进展，包括减数分裂机制、雌雄配子形成与它们相关的基因表达、授精机制、偶合子识别、早期胚胎形成控制以及生物技术在有性繁殖中的应用等等。

C The mature male gametophyte consists of three cells resulting from two meiotic divisions.

成熟的雄配子体包括的三个细胞是由两次减数分裂而来的

The heterozygote genotypes in F2 population in this type of species are different from those in general species in which the genetic recombination occurs in meiosis of both male and female.

这类物种的杂交F2群体中杂合子基因型的与一般物种中雌雄个体的减数分裂细胞都发生遗传重纽的F2群体杂合子表型不同。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。