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- meiotic apogamy 减数分裂无配子生殖
- Oocyte resumed the second meiotic division. 后期将染色体拉向两极;
- Giemsa banding in meiotic chromosomes of Paeonia lactiflora Pall. 芍药减数分裂染色体 Giemsa 显带.
- In addition to sexual reproduction, some ferns produce sporophytes by apogamy. 除了有性生殖外,部份蕨类植物藉无配生殖的方式产生后代。
- Title: Mitotic Karyotyping and Meiotic Observation in Carrot (Daucus carota L. 关键词:胡萝卜;有丝分裂;核型;减数分裂
- Apomixes is comparable to the conditions of apogamy and apospory, which are seen in many ferns. 在许多蕨类植物中常见的无融合生殖包括无配子生殖和无孢子生殖。
- A cell from which gametes develop by meiotic division,especially a spermatocyte or an oocyte. 配子母细胞,配子细胞配偶子通过配子减数分裂而发展的细胞,尢指精母细胞或卵母细胞
- It followed a normal course up to first meiotic metaphase when it inexplicably failed. 它按正常减数分裂过程进行到第一次减数分裂中期后就莫名其妙地停止了。
- A haploid cell that results from the meiotic division of an oocyte and becomes a female gamete or an ovum. 卵(子)细胞由于卵母细胞减数分裂产生而后形成配子或卵细胞的单倍体细胞
- The oocytes undergoing meiotic division sequentially extrude the first and the second small polar bodies from the large oocytes. 卵母细胞在减数分裂过程中相继排出第一和第二极体。
- The chiasmata observed during the later stages of the meiotic prophase are cytological evidence of earlier cross-over events. 在减数分裂前期末所看到的交叉是在这以前发生了互换事件的细胞学证据。
- The effect of cadmium on meiotic maturation and in vitro fertilization of mouse oocyte. 镉对小鼠卵母细胞成熟和体外受精的影响。
- Meiotic Observation and Male Gametes Development in Cytoplasmic Male Sterile of Pepper( Capsicum annuum L. 辣(甜)椒细胞质雄性不育系减数分裂和雄配子发生过程。
- A cell from which gametes develop by meiotic division, especially a spermatocyte or an oocyte. 配子母细胞,配子细胞配偶子通过配子减数分裂而发展的细胞,尢指精母细胞或卵母细胞
- The normal rates of meiotic spindle and chromosome were 82% and 86% respectively. 发现小鼠成熟卵母细胞纺缍体和染色体的正常率分别为82%25和86%25。
- In this paper, the relationship between meiotic recombination and spermatogenesis is reviewed. 本文围绕重组交换与精子发生之间的关系综述了在这个领域内的研究进展。
- After a meiotic reduction in chromosome number sporozoites are formed within the oocyst. 经过减数分裂减少染色体数目形成孢子的卵囊。
- The megasporocyte undergoes the first meiotic division, giving rise to two dyad cells. 功能大孢子进行第二次减数分裂,形成二核胚囊。
- Owing to its haploidy, the Y-chromosome does not undergo meiotic recombination along most of its length. 这些意外导致儿子的Y染色体并不完全和父亲的一样。当然这些意外不是一朝一夕的事。
- Results:The configurations of meiotic spindle chromosome can be observed clearly by LSCM. 结果应用LSCM清晰地观察到了卵母细胞纺缍体和染色体的形态。