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

四时期还出现二、三、含微核的异常四及多。

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

母细行数裂，细裂属同时型，产生小孢子四，为四面形。

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

此时每条染色由一对染色单构成，这两条联合的染色称为四。

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.

小孢子母细数裂裂为同时型,产生正四面型四。

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.

在数第一次裂的前期中的靠后的一个阶段。