卵子

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 results show:(1) In testis, PNA receptors sites were firstly observed in the cytoplasm and plasma membrane of primary spermatocyte, and greatly increased in the plasma membrane of second spermatocyte, then decreased and were accumulated in the tail of the round spermatid. The same reaction was observed in sperms of testis and spermatheca, which shows stronger reaction in head and weaker in tail. A universal dyeing was observed on the plasma membrane of sertoli cells.

结果表明：(1)在中华蚱蜢的精子发生中，PNA受体是由初级精母细胞合成，然后转移到膜上，在次级精母细胞，由于量的积累其质膜出现了强阳性标记；从早期精子细胞到成熟精子时期糖蛋白的分布发生了明显的修饰变化，这些变化与精子获得与卵子进行识别、粘附、结合等受精能力密切相关：受精囊内与精巢内的精子表面的标记是相同的，说明质膜糖蛋白的修饰作用在精巢内就已完成。

Except the incomplete maturation of spermatid nuclear and oocyte activation, idendification of a live spermatid is a pivotal procedure. It is difficult to distinguish round spermatids from other round cells such as spermatocytes, monocytes, polymorphonuclear leukocytes and so on.

除精子细胞的核蛋白不完全成熟及卵子激活不足等因素外，如何正确选择存活精子细胞是个难题，如圆形精子细胞与精母细胞、单核细胞和多形核白细胞等其他圆形细胞的区分就比较困难。

The act of becoming pregnant; fertilization of an ovum by a spermatozoon.

怀孕的行为；卵子与精子结合成受精卵的过程。

Buddhism has it that when spermatozoon combines with ovum, soul is planted into embryo in time, so baby possibly comes into being.

佛教认为，在精子与卵子结合时，神识适时的介入了胚胎之中，如此婴儿才有形成的可能。

Primordial germ cells were the progenitor cell of spermatozoon and ovum.

原始生殖细胞是精子和卵子的前体细胞。

Either of two conjugating gametes that differ in structure or behavior,such as the small, motile male spermatozoon and the larger,non motile female ovum.

异形配子在结构或行为上不同的两个配合配子之一，如小的能动的雄性精子与大的不能动的雌性卵子

A caplike structure at the anterior end of a spermatozoon that produces enzymes aiding in egg penetration .

精子头粒蛋白一种在精子内前端的帽状结构，可产生帮助穿透卵子的

To induce diploid gynogenesis in summer flounder, eggs were fertilized with heterogenous cryopreservative sperm of Lateolabrax japonicas , which was irradiated with UV ray to be genetically inactivated, and cold shock was used to prevent extrusion of the second polar body.

中文摘要：用冷冻保存的花鲈精子作为异源精子，采用紫外线对精子进行照射使其遗传物质失活，然后与卵子进行"授精"，可以刺激犬齿牙鲆鱼卵进行雌核发育，在受精后一定时间采用冷休克处理"授精"卵，抑制第二极体排出成功获得了犬齿牙鲆雌核发育二倍体鱼苗。

There is a tendency for you to feel more relaxed and confident until the ripe egg is released from your ovary (approximately day 14) After this you may have some symptoms of pre- menstrual tension eg headaches, bloating, irritability and tearfulness.

有一种倾向，你觉得更加宽松和信心，直到成熟卵子是从您发表的卵巢（约14天）后，这您可能有一些症状前月经的紧张局势，例如头痛，腹胀，烦躁不安和tearfulness 。

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。