| A dicentric chromosome plus an acentric fragment were scored as one single aberration. |
| This SC karyotype is very similar to karyotypes developed from pachytene chromosome squashes. |
| Micronuclei may originate from acentric chromosome fragments or whole chromosomes lagging behind during cell division. |
| This appears to be consistent with a lower than normal level of recombination in this chromosome. |
| Genetic factors such as parental chromosome abnormalities are a major known cause which should be looked for. |
| They are formed by acentric chromosome fragments or whole chromosomes which are not incorporated into daughter nuclei during cell division. |
