Anaphase in a stamen hair cell of Tradescantia virginiana. The end of metaphase marks the beginning of anaphase(1-2). The sister chromatids separate at their centromeres, and begin to migrate toward opposite spindle pole regions. Within a few minutes (3-4), the cell looks strikingly different as the (unreplicated, daughter) chromosomes are now moving apart at a rate of approximately 1.4 micrometers per minute.Take me back.