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- When the oocytes were fertilized in vitro,the microvilli on their surface became erect,the second polar body had a nucleus, and in the cytoplasm of the oocytes there were abundant organelles which were mainly distributed in the centre of the c ells. 受精后卵母细胞表面的微绒毛由倒伏而竖起,第二极体有核,细胞质中细胞器丰富,主要分布于细胞中心。
- The studies indicated that Inhibiting formation of the first and the second polar bodies in normal diploid zygotes could produce living tetraploid pearl oysters . 比较研究表明，直接抑制二倍体马氏珠母贝受精卵的极体形成可以获得成活的四倍体马氏珠母贝，此方法值得进一步研究。
- The secondary oocyte now divides again into two new cells of unequal size: a relatively large ootid (mature egg cell) and a minute second polar body. 此时，次级卵母细胞又分裂成两个大小不对等的新细胞：一个相对很大的卵子（成熟卵细胞）和一个微小的次级极体。
- the second polar body 第二极体
- 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。
- Estimation of Second Polar Body Retention Rate after Conventional Insemination 常规体外受精后第二极体滞留的观察
- The second snub settled his hash. 第二次碰壁使他不敢再找麻烦了。
- The second term commences in March. 第二学期自三月开始。
- The game didn't heat up until the second half. 游戏玩到后半场才热闹起来。
- The second batch of sugar is better than the first. 第二批制成的糖比第一批好。
- The second part is the high spot of this book. 第二部分是这本书的最精彩部分。
- The team recovered its lead in the second half. 该队在下半场重新领先。
- Take the second turn on the right. 在右边第二个转弯处拐弯。
- Later in the second polarizer,the light will again project to the transmission direction of the polarizer and interfere with each other. 在检偏振器上，沿快慢轴的两束光又分别投影到检偏器的透光轴方向上进行合成发生干涉。
- second polar body 第二极体
- Look at the second paragraph on page fifteen. 请看第十五页的第二段。
- He fouled the same player again in the second half. 他在下半场对同一运动员再次犯规。
- You're the second to ask me that. 你是第二个问我这件事的人。
- Her office is on the second floor. 她的办公室在三楼。
- Take the second turning on the left. 在第二个转弯处向左转。
