At tetrad stage, dyad, triad, tetrad with micronucleus and polyad appeared.

四体时期还出现二体、三体、的异常四体及多体。

Pollen mother cells undergo meioses through simultaneous cytokinesis and give rise to tetrads of microspores, which are tetrahedrally arranged.

花粉母细胞行减，细胞质属同时型，产生小孢子四体，为四面体形。

Ubisch bodies and lipid bodies are found in the glandular tapetums. In meiosis of microsporocyte, cytokinesisis is a simultaneous type, which produces an isobilateral tetrad.

小孢子母细胞减胞质为同时型,产生正四面体型四体。

Diplotene In MEIOSIS, the stage in late PROPHASE I when the pairs of chromatids begin to separate from the tetrad formed by the association of homologous chromosomes.

在减第一次的前期中的靠后的一个阶段。