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- However,most newly arisen polyploids fail to become established because of meiotic abnormalities and/or the paucity of appropriate mates . 然而,由于减数分裂异常和/或缺乏适当的配偶,大多数新出现的多倍体不能确定其多倍性。
- meiosis abnormalities 减数分裂异常行为
- Abnormal meiosis also was observed. 还观察到花粉母细胞异常减数分裂现象。
- To investigate meiotic abnormity of oocytes and relationship between the abnormity and maternal age,germinal vesicle(GV) transfer was carried between GV oocytes from KM mice of different ages. 为探讨卵母细胞减数分裂异常及其与年龄相关变化之间的关系,对不同年龄段昆明白小鼠卵母细胞进行了生发泡(GV)移植研究。
- Such abnormalities can be prevented. 这类不正常现象是可以预防的。
- The chest X-ray reveals no abnormalities. 胸部X光检查结果正常。
- A routine scan revealed abnormalities in the fetus. 一次常规扫描发现胎儿畸形。
- The failure of homologous chromosomes to pair during meiosis. 不联会在减数分裂期间同源染色体不联会成对
- Meiosis of microspore mother cells is synchronous or unsynchronous. 小孢子母细胞减数分裂同步或不同步。
- Reproduction without meiosis or formation of gametes. 无配生殖,无融合生殖无须减数分裂或形成配子的繁殖
- The separation of homologous chromosomes during meiosis. 在减数分裂过程中同源染色体的分离.
- Prophase The first stage of cell division in meiosis and mitosis. 前期:细胞减数分裂和有丝分裂的第一个阶段。
- And immune abnormalities related to belong to autoimmune diseases. 与机体的免疫学异常有关,是属于自身免疫性疾病。
- The dyad formed in Meiosis I was wrapped by thick callose. 粗/双线期,细胞的电子密度增加,细胞壁积累胼胝质,切断大孢子母细胞与珠心细胞之间的胞间连丝,核糖体的数量增多,线粒体与质体的形态变得不易区分,呈现脱分化状态。
- A routine scan revealed abnormalities in the foetus. 一次常规扫描发现胎儿畸形。
- Coronary artery fistulas are uncommon abnormalities. 摘要冠状动脉娄管是罕见的冠状动脉异常。
- Diakinesis The last stage of the PROPHASE in the first division of MEIOSIS. 终变期:减数分裂第一次分裂前期中的最后一个阶段。
- A pair of homologous,synapsed chromosomes associated together during meiosis. 二价染色体在成熟分裂时联在一起的一对同源、联会染色体
- Other cloned animals had been found to have high rates of abnormalities. 克隆动物出现畸形和异常的几率相当高。
- A cell from which an egg or ovum develops by meiosis; a female gametocyte. 卵母细胞一种通过分裂产生卵子的细胞,是一种雌性配子母细胞。