卵子发生

The changes of quantity and ultrastructure of Golgi complex during oogenesis of Bullacta exarata were investigated by transmission electron microscope.

应用透射电子显微镜研究了泥螺卵子发生过程中高尔基复合体的数量和形态结构特点。

The results showed that during oogenesis there was no distribution of the UEA-I receptor.

结果表明，在卵子发生的各期滤泡细胞和卵母细胞中没有UEA-I受体的表达， SBA和PNA受体以不同的分布模式呈阶段性表达。

The results showed that during oogenesis, the positive signals of vasa RNA were detected in the cytoplasm of oocytes at all stages.

结果表明：在金鱼卵子发生中，在各个时期的卵母细胞的胞质中均有金鱼vasa RNA的杂交信号表达。

Ova which are produced during oogenesis are generated in gonial cells of the female's ovaries.

在卵子发生过程中，由卵巢中的性母细胞产生。

There is some evidence that this process can be selective (7). A second possibility simply involves a relative selective advantage to wildtype mtDNAs during the expansion of mitochondria that occurs in oogenesis.

一些证据表明这些过程是就可以被选择的（7）；第二中可能性涉及到在卵子发生的过程中对胀大的线粒体内野生型mtDNA进行相关的优势选择。

And it is found that oogenesis in Drosophila and ant is similar to theoocyte apoptosis. Yolk mainly occurred in the early stage of apoptosis, which may bedue to environmental factors such and is the adaptability of the adverse environmentalmeasures.

并发现，拟黑多刺蚁与果蝇卵子发生有相似的卵母细胞凋亡现象，主要发生在卵黄形成前期，这种凋亡可能是由于环境因素的影响，对不良环境的适应性对策。

RB gene ; Expression ; Spermatogenesis ; Oogenesis ; Kunming Mice

RB基因；基因表达；精子发生；卵子发生；小鼠

The reproductive toxicity of Aroclor 1254 on the oogenesis, the fertilization and preimplantion embryonic in vivo in female mice, the spermatogenesis toxicity, the sperma fertilizing ability and the zygote developmental toxicity in vivo in male mice were studied, and the toxicity mechanism were discussed by histopathological examination of the ovary, the uterus, the testis and epididymides.

以小鼠为动物模型，研究了类二噁英多氯联苯的典型代表物质——Aroclor 1254对母鼠卵子发生、受精和附植前胚胎体内发育毒性，公鼠精子发生毒性，以及对精子受精能力和受精卵体内发育的毒性。

The main research achievements on oogenesis and embryogenesis in mammals are described in this review,including the resumption of meiotic division;activation of MⅡ oocyte;development of parthenogenetic,gynogenetic,androgenetic and reconstituted embryos;and the genetic and reproductive potentials of chromosomes within the first and the second polar body.

本研究将论述哺乳动物卵子发生和胚胎发生的最新研究进展，包括：减数分列的启动， MⅡ期卵母细胞的激活，孤雌胚、雌核胚、雄核胚和重组胚的发育以及第一与第二极体染色体的遗传和生殖潜力。

During reproductive stage,a lot of mucus was secreted by the topcrine gland cells of spermathecal epithelium in lumen, providing proper fluidy medium for sperm storage,and nutrients for sperm survival.

鉴于此，作者在研究了长江华溪蟹精子发生过程中的一系列行为之后(王兰，1996，1997)，又研究了其卵子发生。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。