tetrad
英['tetr?d]
- n. 四個(gè)；四個(gè)一組；[生物] 四分染色體；四價(jià)元素
實(shí)用場(chǎng)景例句
- At this point each chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad.
- 此時(shí)每條染色體由一對(duì)染色單體構(gòu)成,這兩條聯(lián)合的染色體稱(chēng)為四分體.
《簡(jiǎn)明英漢詞典》
- Microspore abortion occurred after the tetrad formation.
- 小孢子敗育發(fā)生在四分體形成以后.
互聯(lián)網(wǎng)
- Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.
- 大孢子四分體為線形, 合點(diǎn)端功能大孢子發(fā)育成為蓼型胚囊.
互聯(lián)網(wǎng)
- Cytokinesis was simultaneous and the arrangement of microspores in the tetrad was tetrahedral.
- 胞質(zhì)分裂為同時(shí)型,四分體中小孢子排列呈正四面體形.
互聯(lián)網(wǎng)
- The characteristics of tetrad was that the nucleus and Golgi bodies being in the active state.
- 四分孢子的顯著特征是細(xì)胞核和高爾基體呈活躍狀態(tài).
互聯(lián)網(wǎng)
- The tapetum begins to vary at the stage of tetrad with the cytoplasm anther cell.
- 小孢子孢原為多細(xì)胞,小孢子母細(xì)胞減數(shù)分裂產(chǎn)生四面體型的小孢子四分體.
互聯(lián)網(wǎng)
- The chalazal megaspore of a linear tetrad develops into a polygonum type sac.
- 四分體線行排列,合點(diǎn)端的大孢子發(fā)育為蓼型胚囊.
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