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Centromeres could be identified easily on the bivalents at diplotene, so it was convenient to analyse the karyotype.
結(jié)果表明在线免费免费观观看看的黄色视频,日本沼蝦染色體數(shù)n=52天天三级视频,2n=104性XXXX欧美老妇胖老大多有水,據(jù)雙線期二價體的相對長度尤物视频139、著絲點位置以及形態(tài)諸方面的特點分析了核型久久国内精品视频,共分為A日韩精品草草视频在线播放,B,C免费毛片在线视频观看,D4個染色體組精品免费观看视频在线,核型組成是N=37M+4ST+11T;初級精母細胞減數(shù)分裂前期I可分為細線期/偶線期99视频在线免费、粗線期黄色动图视频、雙線期和終變期5個時期,雙線期的二價體存在彌散階段欧美精品永久在线观看,核仁明顯欧美日韩国产精东,且雙線期二價體著絲點清晰,給核型分析帶來了方便做爽视频在线观看。
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The dominant male sterility was expressed normally in the new Taigu genic sterile wheat carrying the intergenomically translocated Ms2, and the female fertility mechanism in its male sterile plants was normal as well. Observation of the chromosome configuration at meiosis of pollen mother cells of the young ears of the sterile plants showed that they were euploid plants (2n=42). No configurations different from those of the Taigu geneic sterility gene located at the original locus were noticed of the Ms2 intergenomically translocated back into the common wheat.
所獲攜帶易組Ms2基因的新型太谷核不育小麥其顯性雄性不育特性表達正常影音先锋在线观看日韩AV,且雄性不育株的雌性可育機制正常,對不育株幼穗花粉母細胞減數(shù)分裂期染色體構(gòu)型的觀察可見其為整倍體(2n=42)www.99riav4.com,尚未發(fā)現(xiàn)回歸普通小麥的易組太谷核不育基因與原位點的太谷核不育基因有不同的表型久久一免费视频。
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More cleavage phases can be counted by FISH than G-band dyeing on the diagnosis of mosaicism kyrotype, even many intermediate stage cells can be analyzed by FISH procedure. Time was saved and more precise results can be found.
與常規(guī)染色體核型分析方法比較,F(xiàn)ISH技術(shù)檢測嵌合體核型能夠觀察到更多的分裂相欧美视频专区精品第一页,還可分析核膜完整染色體未分散的間期細胞免费看美女隐私不遮网站,計數(shù)更多的細胞,為臨床提供更準確的數(shù)據(jù)一级片免费按摩久久,且省時白白免费发布在线观看。
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Recent studies have revealed that the FtsZ protein, known as a key com- ponent in prokaryotic cell division, is involved in chlo- roplast division process.
已經(jīng)證明FtsZ 蛋白作為真核細胞分裂裝置的一個關(guān)鍵成分,參與葉綠體的分裂過程日韩午夜在线观看短视频网站大全。
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The relationship between the proterozoic Era and explosive evolution of the life on the Cambrian period was preliminary explored by an Ecological and Evolutionary approach in this paper.
距今38億年前地球最早生命誕生以來国产精品手机免费,至元古代早期第一個真核細胞開始出現(xiàn);從無性分裂或出芽繁殖的原核生物到有性繁殖的真核單細胞生物以及從單細胞的原生動物到真核多細胞的后生動物的進化超级毛特级毛一级毛,無疑是生命進化過程中非常重要的事件91视频精品网。
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And the research materials were often meiotic pachytene chromosomes of sex gland and mitotic prometaphase of early embryos and diapause eggs\' somatic cells.
早期,家蠶染色體識別和基因定位研究主要利用性腺減數(shù)分裂粗線期的染色體欧美粗大视频、早期胚胎和滯育卵有絲分裂早中期的染色體作為材料78摸免费人成视频在线观看免费看,按照相對長度和部分限性易位系統(tǒng)或缺失等來進行核型分析。
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Rbkinesin-6 ablated cells could not finish the telophase/cytokinesis phase, and became binuclear/multinuclear cells.
Rbkinesin-6缺失的細胞無法完成有絲分裂末期/胞質(zhì)分裂日本黄色A片视频在线观看,進而轉(zhuǎn)變?yōu)殡p/多核細胞精品国产污污免费网站入口下载。
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Result There was no significant difference to the number and length of parenchyma cell in the uppermost internode between Shuangdi Pei eS and Shuangdi S in meiosis and dikaryon pollen stages;there was significant difference to those in tikaryon pollen stage, and there was very significant difference to those in anthesis and the 7th day after anthesis,and on the 7th day after anthesis,the difference to the number and length of parenchyma cell in the uppermost internode between Shuangdi Pei eS and Shuangdi S was the greatest.
長穗頸雙低培eS與雙低S穗頸節(jié)間薄壁細胞數(shù)及細胞平均長度在減數(shù)分裂期和二核花粉期差異不明顯a片人人人人v人人人人人人a片人,于三核花粉期差異達顯著水平,始花當(dāng)天和始花后第7天均達極顯著水平亚洲麻烦在线视频,其中始花后第7天時兩者的差異最大一级美女少妇免费性爱视频。
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With the seeds of artificially cultivated 2-year-old A. heterophyllum as tested materials, the cells in metaphase in the seeds were made for observation, statistic and karyotype analysis, and based on the 2 main features of length ratio and arm ratio of chromosome, the karyotypes were classified according to the criteria of Stebbins.
方法]以人工栽培的2年生異葉天南星種子為試材,觀察種子中的中期分裂相細胞并對其進行統(tǒng)計和核型分析欧美性爱视频看,其核型分類根據(jù)核型中染色體的長度比和臂比2項主要特征羞羞视免费观看,按Stebbins的標準進行劃分。
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He fell in love with Irène Curie, and soon after their marriage in 1926 they both changed their surnames to Joliot-Curie.
先前他曾在居里實驗室和妻子何澤慧合作国产色无码免费无码视频软件,發(fā)現(xiàn)了鈾核的三分裂和四分裂現(xiàn)象伊人欧美在线视频免费版观看。
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And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.
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Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.
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Hey Big Raven, The individual lies dont matter anymore - its ALL a tissue of lies in support of...
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