meiotic 中文意思是什麼

The chiasmata observed during the later stages of the meiotic prophase are cytological evidence of earlier cross-over events.

在減數分裂前期末所看到的交叉是在這以前發生了互換事件的細胞學證據。

Protein kinase a is camp - dependent kinase, one of the most important signal transduction pathways, plays a pivotal role in growth, differentiation, tumor occur, cell cycle control, etc. pka activators such as camp, 8 - br - camp or phosphodiesterase ( pde ) inhibitor isomethyl butyl xanthine ( imbx ) or purified pka catalytic subunit all can inhibit germinal vesicle breakdown ( gvbd ) and meiotic maturation in mouse oocytes, also in xenopus oocytes

蛋白激酶a （ proteinkinasea ， pka ）是依賴于camp的絲蘇氨酸蛋白激酶，是重要的信號傳導途徑之一，廣泛參與許多生命過程，包括生長、分化、腫瘤發生、細胞凋亡、細胞周期調控等。以小鼠卵母細胞為實驗對象，給予pka激動劑camp 、 8 - br - camp或磷酸二酯酶抑制劑imbx （ isomethylbutylxanthine ）均可抑制小鼠卵母細胞的胚泡破裂及減數分裂成熟。

Few studies have been conducted so far on meiotic progression and none was carried out on its control via hypoxanthine in goat oocytes

但是，有關山羊卵母細胞的減數分裂進程及其調控均有待進一步的研究。

In this study, the meiotic progression and its control by hypoxanthine were studied in the goat oocytes aspirated from slaughtered ovaries

本實驗以隨機屠宰山羊卵巢為材料研究了山羊卵母細胞減數分裂的進程以及hx在這一過程中的調控作用。

Rat cumulus - enclosed oocyte ( ceo ) and denuded oocyte ( do ) both spontaneously resume meiotic maturation in vitro, when cultured for 2h, the germinal vesical breakdown percentage of do reaches up to 88 %, and ceos get 53 %. oocytes begin to extrude first polar body 1 ( fb1 ) when cultured for 8h. mouse oocyte spontaneous maturation in vitro can be inhibited by 4mm hypoxanthine ( hx ) or 25um 3 - isobutyl - methylxanthine ( ibmx ). while, 4mm hx can not inhibit the spontaneous maturation of rat oocyte, and the lowest effective concentration of ibmx to inhibit rat oocyle spontaneous maturation in vitro is 50um. treated with the same concentration of ibmx, gvbd percentage of rat ceo is lower than that of do, the results indicat that cumulus cells delay rat oocyte spontaneous maturation and potentate the inhibition effect of ibmx, but it ' s not the case on mouse

Ceo和do培養8h時都開始排出pb1 ；在卵母細胞成熟抑制模型中， 4mm次黃嘌呤（ hx ）和25 m的異丁基甲基黃嘌呤（ ibmx ）是小鼠卵母細胞成熟的有效抑制劑，但4mm的hx抑制大鼠卵母細胞成熟效果不理想，用hx - m199和hx - mem培養24h ， gvbd率分別為61 ， 81 ，而ibmx有效抑制大鼠卵母細胞自發成熟的最小濃度為50 m ， ibmx可以降低大鼠ceo和do的gvbd率，但ceo中的卵母細胞gvbd率要顯著低於do的gvbd率， 100 m的jbmx處理24h后，大鼠ceo和do的gvbd率分別為24 ， 84 ，提示卵丘細胞的存在可以延遲大鼠卵母細胞的自發成熟，有助於抑制卵母細胞成熟，但在小鼠上ceo和do的自發成熟差異不明顯。

In dandelion ( taraxacum ), for example, the chromosomes of the megaspore mother cell remain in one cell after the first meiotic division, forming a restitution nucleus

例如在蒲公英中，在第一次減數分裂后，大孢子母細胞的染色體仍在一個細胞中，形成一個再組核。

It followed a normal course up to first meiotic metaphase when it inexplicably failed.

它按正常減數分裂過程進行到第一次減數分裂中期后就莫名其妙地停止了。

Observation on the meiotic behaviour of pollen mother cells of two citrus cultivars

2個柑橘品種花粉母細胞減數分裂行為的觀察

Observation on meiotic division of pollen mother cell and pollen vigor assessment for four species of ceratoides

駝絨藜屬4種植物花粉母細胞減數分裂的觀察及花粉活力的測定

A variety of biology events occur during spermatogenesis, such as self - renewal of spermatogonia, meiotic division of spermatocyte and the spermiogenesis of spermatid

生精過程中發生了許多生物學的變化，如精原細胞的自我更新，精母細胞的減數分裂和精子細胞的變形。

Meiotic observation and male gametes development in cytoplasmic male sterile of pepper capsicum annuum l

椒細胞質雄性不育系減數分裂和雄配子發生過程

The mean meiotic configuration of h. patula with p. huashanica and r. ciliaris var

說明雙親有一組染色體具有較高的同源性，即h duthiei含有ns染色體組。

Taken together, high level of no inhibits porcine oocyte meiotic maturation, especially the transition from ml to m ii, by mediating functions of cumulus cells. experiment 2

這些結果表明維生素c和e促進dos恢復減數分裂和發育到m期，可以抑制卵丘細胞的凋亡，尤其是10 m的生育酚和250 m的抗壞血酸。

The cumulus expansion, cumulus cells dna fragmentation, oocyte meiotic maturation and degeneration were determined 44 h after incubation. snp inhibited cumulus expansion and cumulus cells dna fragmentation in a dose - dependent manner

結果發現， snp可劑量依賴性地抑制卵丘細胞的擴展和dna片段化，同時抑制ceos中卵母細胞的減數分裂恢復，抑制m向m期轉變。

Computation - oriented analysis on haplotypes and patterns of meiotic recombination hotspots in high eukaryote. applicants should have some backgrounds in population genetics

以計算分析為主進行單倍型分析和高等生物減數分裂重組熱點的規律研究。要求應聘者有一定的群體遺傳學背景知識。

As the result, this study was to investigate the functions of no on porcine oocyte meiotic maturation and its mechanisms

本論文以豬為對象，研究了no在卵母細胞減數分裂中的作用及機理。

However, the oocytes will arrest the first meiosis at prophase in their follicles. after a long development and acquiring the meiotic resumption competence, oocytes in preovulatory follicles will resume meiosis to mature under the stimulation of preovulatory gonadotropins surge

卵母細胞減數分裂隨之停滯于第一次減數分裂的前期，在卵泡中通過漫長的生長發育過程后，在一定的刺激條件下才恢復減數分裂而成熟。

As the most common used small experimental animals, rat and mouse have inconsistencys in reproduction, especially in gondonatorpin inducing oocyte maturation. our research was undertook to elucidate which kind of gonadotropins play role in oocyte meiotic maturation, the effects of fsh ans lh / hcg on mouse and rat oocyte maturation in vitro were examined under different culture models

在體外自發成熟模型中，大鼠的去卵丘裸卵（ do ）自發成熟發生要較卵丘包被的卵母細胞（ ceo ）早， do培養2h時gvbd可達到88 ，而ceo培養2h的gvbd為53 。

In the laboratory experiment part, human peripheral blood, cultured cells and icr mice were study objects. the changes of mitotic chromosome numbers were measured by human metaphase chromosome counts and statistic analyzed used x2 - test. the changes of meiotic chromosome numbers were measured by mice one - cell zygote chromosome counts and statistic analyzed usedx2 - test. the effects of low dose ionizing radiation on the expression of topoisomerase ii were measured by immunocytochemistry, western blot and rt - pcr

流行病學結果顯示長期小劑量輻射接觸與染色體不分離呈正相關，為進一步在細胞遺傳學和分子生物學方面研究小劑量電離輻射與染色體不分離關系及其機制，本課題第二部分以外周血、培養細胞、 icr小鼠為研究對象，用外周血染色體計數和單細胞受精卵染色體計數的方法研究小劑量輻射和拓撲異構酶復旦大學2000級博士生學位論文11a抑制劑及其二者的協同效應對有絲分裂和減數分裂染色體不分離的影響，用免疫細胞化學染色、 westernblot 、 rt pcr等方法研究了電離輻射引起拓撲異構酶a表達變化。

Application of spindle - view in the observation of meiotic spindles of oocytes

觀察哺乳動物成熟卵的紡綞體