1. In diatoms, the diploid sporophytes are formed after meiosis.
在硅藻中，减数分裂后形成了二倍体的孢子体。

2. The life cycle of some algae involves alternating generations between haploid and diploid phases.
一些藻类的生命周期涉及到单倍体和二倍体阶段的代谢交替。

3. The generation of gametes in plants is preceded by the formation of diploid spores.
植物中的配子的生成是在形成二倍体孢子之前进行的。