| In the Metaphases of the karyokinesis begins the actual division of the cell. |
| Cells were classified with regard to the presence of abnormal metaphases and aberrations of any of the stages of mitosis. |
| The number of cells with chromosomal aberrations among 100 well-spread metaphases was recorded. |
| During pachytene, the chromosomes are less condensed and much longer than in mitotic metaphases. |
| After three subsequent changes of fixative, metaphases were prepared by dropping the cell suspension onto labelled clean, moist microscope slides. |
| At later periods, extremely aberrant metaphases predominated. |
