A puzzle in the control of cell division, one of the most fundamental processes in all biology, has been unravelled by Oxford University researchers. Although the steps of cell division are familiar to all pupils studying biology in schools, the details of how cell division is controlled and errors avoided have still to be sorted out. In a paper appearing in Nature this week, the Oxford team show that a protein ring is used to hold two sister copies of each DNA molecule together physically. (source: ox.ac.uk)
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