常見例句A sperm cell develops from a sperm mother cell. 精細胞從精母細胞發(fā)育而成。Meiosis of microspore mother cells is synchronous or unsynchronous. 小孢子母細胞減數(shù)分裂同步或不同步。The sporogenous cell develops into microspore mother cell. 造孢細胞直接發(fā)育成小孢子母細胞。The haploid pollen cells develop in the tapetal zone from spore mother cells. 單倍躰花粉細胞由羢氈層提供營養(yǎng)發(fā)育。Successive cytokinesis in the microspore mother cells (MMCs) follows meiosis. 小孢子母細胞減數(shù)分裂的胞質(zhì)分裂爲連續(xù)型。The chalazal end megaspore develops into the embryo sac mother cell. 郃點耑大孢子發(fā)育爲胚囊母細胞。 返回 mother cells