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

四体时期还出现二体、三体、含微核的异常四体及多体。

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

花粉母，质属同时型，产生小孢子四体，为四面体形。

At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad.

此时每条染色体由一对染色单体构成，这两条联合的染色体称为四体。

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.

在第一次的前期中的靠后的一个阶段。