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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

  • Otherwise, the chromosome morphology involving Haynaldia chromatin was observed at preleptotene I, and the frequencies of chromatin nucleus at tetrad stage and at microspore stage were investigated.
    此外,观察了前期I的簇毛麦染色体形态,统计了四分体和小孢子中小麦和簇毛麦染色质微核频率。
  • 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。
  • There is only one layer of parietal cells at the stage of sporogenous cell, megaspore mother cell and tetrad.
    造孢细胞,大孢子母细胞和四分体时期,周缘细胞仅1层。
  • 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?
  • At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad.
    此时每条染色体由一对染色单体构成,这两条联合的染色体称为四分体。
  • Callose exists mainly in transverse walls during dyad, triad and tetrad stages, a little in side walls.
    二分体、三分体、四分体时期,胼胝质荧光主要存在于大孢子之间的横壁上,侧壁内胼胝质荧光较弱。
  • The megaspore mother cell undergoing meiotic divisions produces a T-shaped, or, rarely, linear tetrad.
    大孢子母细胞减数分裂产生T形四分体和少数线形四分体。
  • 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。
  • 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。
  • It appears however that the formation of megaspore tetrad associated with the high GA3/ ZT ratio.
    高水平的ZT/IAA有利于大孢子母细胞和花粉粒的形成,而大孢子四分体的形成则需要高的GA3/ZT比值。