常見(jiàn)例句A sperm cell develops from a sperm mother cell.精細(xì)胞從精母細(xì)胞發(fā)育而成。Meiosis of microspore mother cells is synchronous or unsynchronous.小孢子母細(xì)胞減數(shù)分裂同步或不同步。 返回 mother-cell