1. There were micronucleus at telophase in another pollen mother cells.

2. Non - equal division the chromosomes male sterile pollen mother cells was anaphase of the second stage.

3. Each microsporangium is lined with a nutritive tissue layer called the tapetum and initially contains diploid pollen mother cells.

4. 5 Pollen mother cells undergo meioses through simultaneous cytokinesis and give rise to tetrads of microspores, which are tetrahedrally arranged.

5. 3 Pollen mother cells undergo meioses through simultaneous cytokinesis and give rise to tetrads of microspores, which are mostly terahedrally arranged.

6. 20 The results were as follows:the meiosis in pollen mother cells of radish simultaneous cytokinesis and chromosomes could be identified as rod or ring bivalents in diakinesis except for 3% abnormal.