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tetrad

网络  四分体; 四联球菌; 四联体; 四分子; 四分孢子

复数:tetrads 

计算机

英英释义

noun

双语例句

  • The process of pollen abortion begins with vacuole formation and gradual enlargement in the tetrad.
    花粉败育的过程从四分体开始,细胞质内液泡逐渐增大,接着细胞器解体,细胞核解体。
  • The sporogenous cell functioned directly as megaspore mother cell. The tetrad of megaspores was linear in arrangement, and every megaspore might be functional.
    孢原细胞平周分裂形成一个周缘细胞和一个造孢细胞,造孢细胞直接发育成大孢子母细胞,四分体大孢子呈线形排列,它们均可成为功能大孢子;
  • The Huangshan A-type granites with tetrad REE: constraints on Mesozoic lithospheric thinning of the southeastern Yangtze craton?
    高度演化的黄山A型花岗岩:对扬子克拉通东南部中生代岩石圈减薄的约束?
  • The pairing and segregating of homologous chromosomes at the frist and second division of meiosis were conformed with PMC meiosis, and finally, the tetrad were formation.
    在减数第一和第二次分裂中,同源染色体的配对和分离基本正常,最后形成四分体。
  • Microspore mother cells meiosis was conformed to simultaneous type with mostly tetrahedral and decussate tetrad.
    小孢子母细胞减数分裂属于同时型,小孢子在四分体中的排列方式多数为四面体形,少数为十字交叉形。
  • This phenomenon occurs in the early tetrad stage.
    这个现象在早期四分体阶段出现。
  • Our main results were as follows: the ovary of male I degenerated and disappeared quickly upon megaspore tetrad degeneration, and developed into macrosporocytes;
    结果发现:色木槭一期雄花(雄I)在大孢子四分体退化形成功能性大孢子时期,子房萎缩并迅速退化消失;
  • Study on Simultaneous Determination of Pigments in Tetrad Mixtures by Spectrophotometry with Wavelet Transform-Principal Component Regression Method
    小波变换-主成分回归法在四组分食用色素同时测定中的应用研究
  • The results are as follows: During anther early development, only few ATPase precipitates located in small vacuoles and the nucleus of microspore mother cell and tetrad microspore.
    结论如下:在花药发育过程中,小孢子母细胞和四分体内的ATPase很少,仅在细胞核及小液泡中分布有少量的ATPase。
  • Tapetum cell hyperplasia from the tetrad to the single nucleus early period.
    绒毡层细胞在四分体&单核早期发生增生;