| In all specimens, mitotic index was quantitated by counting the number of mitoses per twenty 100X oil immersion fields in areas of highest mitotic activity. |
| The columnar cells had abundant cytoplasm, basally located nuclei, and no mitoses. |
| The mitotic activity was focally brisk, with an average of 8 to 10 mitoses per highpower field in these areas. |
| Moreover, within an embryo sac, endosperm nuclei were always of the same size, with no typical chalazal cyst formed in endosperms with three or more syncytial mitoses. |
| Although mitoses were still detected in leaf primordia of that stage, cell differentiation had already started. |
| The state of gene inactivation is inherited epigenetically through multiple mitoses. |
