Barley seeds were irradiated with five different doses of 60 Co-γ ray.There were many kinds of chromosome aberration in pollen mother cells,such as bridge,laggards in anaphase I and anaphase II,asymmetrical division in anaphase I and asynchronous division in anaphase II,ring quadrivalent in metaphase I,three pole division and micro-nuclei in telophase I,micro-nuclei in tetrad and some micro-nucleus separates from the tetrad to form polyad.

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Some investigations suggested that cyclins and CDK played an important role in the regulation of endomitosis of megakaryocyte. However, the mechanism of cyclins and CDK in the regulation of endomitosis of fetal megakaryocytes during ontogenesis and the relationship between cyclins/CDK and retardation of endomitosis of fetal mgakaryocyte is totally unknown.

一些研究發(fā)現(xiàn)周期蛋白和CDK在巨核細(xì)胞核內(nèi)有絲分裂的調(diào)控上起重要作用，然而被插插的视频，周期蛋白和 CDK在胎兒巨核細(xì)胞核內(nèi)有絲分裂調(diào)控上所起的作用加勒比一本大道日韩在线观看，及其與胎兒巨核細(xì)胞核內(nèi)復(fù)制延遲的關(guān)系目前全然不知。

Karyokinesis like: karyokinesis as benign or non-rare, but not as pathological karyokinesis; malignant karyokinesis as often, and can be seen as pathological karyokinesis.

2核分裂像：良性腫瘤核分裂像無或稀少欧美性爱一嫩草影院，不見病理核分裂像加勒比视；惡性腫瘤核分裂像多見，并可見病理核分裂像色七七亚洲激情。

Nuclear changes in gynogenetic eggs of the scallop were examined under a fluorescence microscope during meiosis and fertilization, indicating that UV-irradiated sperm nucleus did not participate in the karyokinesis at anaphase of the first cleavage.

運(yùn)用熒光顯微鏡觀察探討了櫛孔扇貝雌核發(fā)育卵子在受精和成熟分裂過程中的核相變化操碰视频在线观看，發(fā)現(xiàn)UV照射精核不參與核分裂，首次提供了櫛孔扇貝雌核發(fā)育的細(xì)胞學(xué)證據(jù)免费在线视频黄色。

Both the new peniculus 1 and the old haplokinety separated at the telophase.The two germinal rows germinal rowsfor both the daughter cells appeared almost at the same time;(2) The macronucleus became shorter and thicker, finally oblate during the division of the cell. Then the macronucleus restored its original shape, band-like form. The micronucleus were divided into two before the macronucleus division;(3) The original scopula and stalk contributed to the old cell. The new cell formed scopula gradually after the cell division.

同時(shí)国产乱伦露脸，新仔蟲的第一咽膜(P′1)也開始由老單毛基索復(fù)制，并在細(xì)胞分裂后期與老結(jié)構(gòu)分離欧美野外打野战A片视频；(2)大核在蟲體分裂過程中由長帶狀逐漸縮短變粗至扁圓形一级毛片免费播放在线视频尤，于蟲體即將分開時(shí)迅速拉長，然后分裂為二個(gè)新大核欧美精彩视频；小核分裂先于大核色偷拍91视频，在兩仔蟲口纖毛器即將分開時(shí)完成久久久久久久久久久久久久精品；(3)原帚胚及柄歸屬老仔蟲，新仔蟲的帚胚在蟲體分裂后逐漸形成国产精品视频色拍拍202，柄內(nèi)肌絲則在柄鞘形成后逐漸長出变态自拍日韩欧美在线观看网站免费。

It takes about 0.5 h for a pollen tube from germination to arrive at the micropyle. About 0.5 h after pollination, the pollen tube releases two sperms into one synergid. At 0.5-2.5 h after pollination, the egg cell fuses with one sperm to form a zygote. About 10.0 h after pollination, the division of the zygote begins. The duration of the zygote lasts about 2.5-10.0 h. However, one sperm nucleus fuses with two polar nuclei at 1.0-3.0 h after pollination, and 5.0 h after pollination the primary endosperm nucleus begins to divide.

水稻受精過程經(jīng)歷的時(shí)間表如下：授粉后，花粉在柱頭萌發(fā)亚洲免费视频在线看；花粉萌發(fā)至花粉管進(jìn)入珠孔大約需要0.5小時(shí)插进去好爽视频；授粉后0.5小時(shí)左右，花粉管進(jìn)入一個(gè)助細(xì)胞久久se精品一区精品二区精，釋放精子WWW性com；授粉后0.5-2.5小時(shí)，精卵融合形成合子午夜理论片最新午夜播放；授粉后約10.0小時(shí)成a人一级性爱，合子第1次分裂，合子期為授粉后2.5-10.0小時(shí)在线观看视频在线高清黄色网站；授粉后1.0-3.0小時(shí)www.青草草在线视频，精核與兩極核融合插插网站；授粉后約5.0小時(shí)综合图区欧美，初生胚乳核分裂。

Though the gametic nucleus of normal cell didn't enter the amicronucleate cell, there were cytoplasm and organelle exchanges between two cells.

在接合對(duì)中美国色播AV，有小核細(xì)胞一方可以完成正常的減數(shù)分裂過程国产人看人碰人摸人澡，既有配子核的形成、配子核的融合中文字幕在线永久在线57、配子核分裂欧美午夜性爱电影，最終形成兩個(gè)有小核的子細(xì)胞。

It was showed that throughout the nuclear division, nuclear membrane did not disintegrate,lamina always existed; But only one lamin peptide (similar to lamin B in higher eukaryotes) was expressed during division,ant its expression quantity changed according to the progress of division: in interphase, lamin was constant; when entering G1 phase, lamin increased sharply; then, increased slowly untill division finished.

結(jié)果表明：在整個(gè)核分裂過程中国产在线观看无码免费的网站，核膜不崩解www.18Aⅴ.Com视频，核纖層結(jié)構(gòu)一直存在；但隨著分裂的進(jìn)展久久男女高潮喷水激烈免费观看，始終只有一種成分（類似于高等生物lamin B ）的表達(dá)狼友视频在线播放；其表達(dá)量隨著分裂時(shí)相的推移而變化：間期時(shí)，比較恒定又爽又刺激的视频网站，進(jìn)入G1期時(shí)明顯增加黄色在线观看视频网址；以后不斷略有增加，直到分裂完成羞羞真人视频。

The karyotypes of four species in Pentatomidae were studied in male germ cells prepared on air dried slides stained with Giemsa.Karyotype analyses using specific software are made for the first time in pentatomid karyotypic study and model karyotype charts are presented.

研究了4種中國蝽科昆蟲的核型和染色體的減數(shù)分裂行為欧美性爱激情图片，并首次在半翅目中采用核型分析軟件對(duì)第一次減數(shù)分裂中期的染色體進(jìn)行核型分析。

Alternative layers of target material 〓 are irradiated with (47.5 MeV/u)〓 ions, the ternary fission events of hot nuclei are verified and the probabilityratioes of ternary fission relative to binary fission with projectile energy from25Mev/u to 47.5MeV/u are measured and reprodurced with calculation result ofstatistical cascade fission model program written by myself. The fact that ternaryfission at low excitation energy come from cascade fission is shown.

5MeV／u〓束轟擊Bi靶時(shí)www.AV天堂2011，用疊層靶技術(shù)人人澡人人擦人人精品，實(shí)驗(yàn)證明了熱核三分裂變確實(shí)存在自拍偷拍亚洲福利，并測(cè)量了25MeV／u～47.5MeV／u 〓三分裂變相對(duì)于二分裂的三二比的激發(fā)曲線，利用自編級(jí)聯(lián)統(tǒng)計(jì)模型程序1福利久久，模擬了低溫?zé)岷说娜至严鄬?duì)于二分裂的幾率6080毛片，結(jié)果也表明在較低激發(fā)時(shí)熱核三分裂是級(jí)聯(lián)三分裂。

amitosis：無絲分裂

(一)無絲分裂(amitosis)也叫直接分裂,是一種比較簡(jiǎn)單的分裂方式. 在無絲分裂時(shí)看不見染色體的復(fù)雜變化,核物質(zhì)直接分裂成二部分. 一般是從核仁開始,延長橫裂為二,接著核延長,中間縊縮,分裂成2個(gè)核;同時(shí),細(xì)胞質(zhì)也隨著拉長并分裂,

endomitosis：有絲分裂

(1) 核內(nèi)有有絲分裂(endomitosis): 核內(nèi)染色體復(fù)制后并分裂,但不是形成子核,仍是一個(gè)核,結(jié)果加倍了的這些染色體都留在一個(gè)核內(nèi). (2) 核內(nèi)染色體連續(xù)復(fù)制,但其著絲點(diǎn)并不分裂,因此形成 多線染色體(polytene chromosome),

nuclear fission bomb：核分裂彈

核分裂 nuclear fission | 核分裂彈 nuclear fission bomb | 核分裂鏈反應(yīng) nuclear fission chain reaction

fission fusion fission bomb：分裂-熔合-分裂彈

分裂核 fissionable nucleus | 分裂-熔合-分裂彈 fission-fusion-fission-bomb | 分裂分布 fissioning distribution

fissionable nucleus：分裂核

分裂材料 fissionable material | 分裂核 fissionable nucleus | 分裂-熔合-分裂彈 fission-fusion-fission-bomb

karyokinesis：核分裂

有絲分裂的過程較復(fù)雜,包括核分裂(karyokinesis)和胞質(zhì)分裂(cytokinesis)兩個(gè)步驟. 核分裂是一個(gè)連續(xù)的過程,從細(xì)胞核內(nèi)出現(xiàn)染色體開始,經(jīng)一系列的變化,最后分裂成二個(gè)子核(daughter nucleus)為止. 為了解說上的便利,

karyokinesis：核分裂 有絲分裂

karyogenetics 核遺傳學(xué) | karyokinesis 核分裂 有絲分裂 | karyokineticphase 核分裂期

karyokinesis; caryokinesis：核裂;核動(dòng);間接分裂;有絲分裂

核型圖 karyogram | 核質(zhì)體 karyoid | 核裂;核動(dòng);間接分裂;有絲分裂 karyokinesis; caryokinesis

fission resonances：分裂共振

分裂反沖 fission recoils | 分裂共振 fission resonances | 分裂核種 fission species

segmentation nucleus：分裂核

segmentation movement ==> 分節(jié)運(yùn)動(dòng) | segmentation nucleus ==> 分裂核 | segmentation overlay ==> 分段覆蓋,分段重疊