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- chromatid tetrad 四分染色单体
- The micronuclei were not observed in tetrad stage . 四分体阶段有微核。
- The other cells of the tetrad undergo degeneration. 胚囊发育类型为单孢子蓼型胚囊;
- The formation of chromatid cores is not directly related to the SC. 染色体轴的形成与SC的侧轴无直接的相关性。
- The microspores in tetrad stage showed tetrahedron structure. 小孢子四分体为四面体型。
- Which undergoes meitotic division and forms a linear tetrad. 由孢原细胞直接发育形成大孢子母细胞。
- Abnormal development was observed at tetrad and mature embryo sac. 在四分体和成熟胚囊时期观察到了异常发育现象。
- Choosing the proper objective and observing the numbers of chromatid breaks. 为喉癌、鼻咽癌患者的一级亲属;
- Apparently,it is disconti nuous between the SC and the chromatid core. 这 两种轴结构之间很明显不是连续的。
- At tetrad stage, dyad, triad, tetrad with micronucleus and polyad appeared. 四分体时期还出现二分体、三分体、含微核的异常四分体及多分体。
- The megaspore mother cell meiosis to form a linear megaspore tetrad. 大孢子母细胞减数分裂产生直线形大孢子四分体。
- The chalazal megaspore of a linear tetrad develops into a polygonum type sac. 四分体线行排列，合点端的大孢子发育为蓼型胚囊。
- The pattern of microspores in the tetrad period is of tetrahedron type. 小孢子四分体时期其排列为四面体型。
- In tetrad stage, the structures of tapetal cells begin to dissociate. 四分体时期，绒毡层细胞内部结构开始解体。
- There were micronuclei and tetraspores of various types in the tetrad stage . 四分体阶段有微核和不同类型的四分孢子群。
- The sister chromatid exchanged (SCE) frequency among infertile men increased in different degrees (P<0.05). 男性不育者的姐妹染色单体交换率有不同程度的增高(P<0.;05)。
- The standard practice is to call the entire structure a chromosome and each of its strands a sister chromatid. 标准的做法是把整个结构称为一个染色体，而把它的各条称为姐妹染色单体。
- One pair of homologous chromosomes resulting from the division of a tetrad during meiosis. 二分体一对由四分体在成熟分裂过程中形成的同源染色体
- Study on the impact of trinitrotoluene on sister chromatid exchange of Mocaca mullatta peripheral blood lymphocyte. 三硝基甲苯对恒河猴外周血淋巴细胞姐妹染色单体互换的影响。
- At anaphase the dicentric chromatid will form a bridge and the acentric a fragment, both of which can be scored. 在后期双着绿点染色体将形成一个桥，无着绿点染色体单体形成一断片，此两者均可记录下来。
