1.Bivalent --- A pair of homologous chromosomes in association, as seen at metaphase of the first meiotic pision.
发生联会时的一对于同源染色体，见于首届减数分裂的中期。
2.The mammalian oocytes are important materials for study of meiotic cell cycle in developmental biology and cell biology.
哺乳动物卵母细胞是发育生物学和细胞生物学的重要研究对象。
3.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。
4.The microspore mother stage and meiotic prophase were the developmental stages that were most sensitive to low temperature.
小孢子母细胞时期和减数分裂前期是对低温最敏感的发育阶段。
5.Since crossing over can occur during the first meiotic pision, it does allow for some genetic variation in the offspring.
在第一次减数分裂的过程中可以发生交换现象，因而在后代中有遗传变化。
6.A second meiotic pision, followed by development of the embryo, takes place if the egg is fertilized .
如果卵受精，那么第二次减数分裂伴随胚胎的发育。
7.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。
8.The processes of meiotic pision of pollen mother cells were compared between male sterile plants and male fertile ones.
以萝卜雄性不育株与可育株为试材，比较研究了不育与可育花粉母细胞的减数分裂过程。
9.The first meiotic pision is unique and involves the segregation of homologous chromosomes.
而减数第一次分裂是独一无二的，在这次分裂中同源染色体分离。
10.This paper reviewed the reverse effects of xenobiotics on the meiotic maturation process of oocytes and the mechanism.
系统综述了外源性化学物对卵母细胞减数分裂成熟的影响及其作用机制。