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- Zygote meiosis can be observed with fresh-water algae Chlamydomonas, Spirogyra, Chara for assistant materials. 淡水产衣藻属、水绵属及轮藻属可作为观察合子型减数分裂的辅助材料。
- zygotic meiosis 合子减数分裂
- Abnormal meiosis also was observed. 还观察到花粉母细胞异常减数分裂现象。
- 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
- A sharp demarcation of adventive embryos from zygotic embryos cannot be drawn. 不定胚与合子胚之间不能划分出明显的界限。
- 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。
- 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。
- Its functions are like a zygotic embryo in giving rise to a new plant. 其功能象能产生一株新植物的合子胚。
- Zygotic embryo is better than vegetative materials when used for explants. 合子胚作为外植体明显好于营养器官作为外植体。
- 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
- 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。
- 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
- 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
- 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 nucellar embryo had a suspensor,its development passed through the similiar stages of the zygotic embryo. 珠心胚发育经历与合子胚相同的发育阶段。
- The development of the somatic embryoids was very similar to that of zygotic embryos of wheat. 体细胞胚胎形成过程与小麦合于胚的形成过程十分相似。