- 近义词
- quatern四个
- quaternaryn.四,四个一组;
- quadrupletn.四组,四胞胎中之一;
- foursomen.两对,四人一组;(每边两人的)双打;四人对抗赛;
- 4 four;
- fournum.四;四个人(或事物)的一组;得四分的一击;四人赛艇的全体成员;四人赛艇;
- quartetn.四重唱(奏)曲;四重唱(奏)组;四件一套;
- quaternityn.四个一组,四人一组,四位一体;
- quaternionn.四个一组,四人一组,四元数;
- 双语例句 更多例句
此时每条染色体由一对染色单体构成,这两条联合的染色体称为四分体.
《简明英汉词典》
The chalazal megaspore of a linear tetrad develops into a polygonum type sac.
四分体线行排列,合点端的大孢子发育为蓼型胚囊.
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The tapetum begins to vary at the stage of tetrad with the cytoplasm anther cell.
小孢子孢原为多细胞,小孢子母细胞减数分裂产生四面体型的小孢子四分体.
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The characteristics of tetrad was that the nucleus and Golgi bodies being in the active state.
四分孢子的显著特征是细胞核和高尔基体呈活跃状态.
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Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.
大孢子四分体为线形, 合点端功能大孢子发育成为蓼型胚囊.
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Cytokinesis was simultaneous and the arrangement of microspores in the tetrad was tetrahedral.
胞质分裂为同时型,四分体中小孢子排列呈正四面体形.
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- 相关词组
- chromatid tetrad四分染色单体;
- 今日热词
- 热门搜索
- 爱恋 be in love with; feel deeply attached to
- either or adv.不是…就是…,…或…,要么…要么…;
- small adj.小的;难为情的;低级的,卑劣的;细微的,微弱的;adv.小小地;卑鄙地;
- trolley-bus 无轨电车;
- TVB abbr.电视广播;Television (Advertising) Bureau 电视(广告)署
- edge n. 边;优势;(悬崖、峭壁的)边缘,端;锋利,尖锐;vt. 在…上加边界;使渐进;给(刀刃)磨边,使锋利;修整;
- literature n.文学;著作;
- optimistic adj.乐观的;
- mankind n.人类;
- amongst prep.(表示位置)处在…中;(表示范围)在…之内;(表示牵涉)经过;(表示所属)为…所特有;
- Mexican n.墨西哥人;
- avenue n. 林荫路;大街;途径,手段;〈美〉(南北向)街道;

