www.sciencedaily.com -
Anew study at Oregon State University has finally resolved a controversythat cellular biologists have been arguing over for nearly 50 years,with findings that may aid research on everything from birth defectsand genetic diseases to the most classic "cell division" issue of themall – cancer.
Theexact mechanism that controls how chromosomes in a cell replicate andthen divide into two cells, a process fundamental to life, has neverbeen completely pinned down, researchers say.
Twodistinct theories were formed, called polar relaxation and equatorialstimulation, to explain this aspect of cell division – and somescientists have spent much of their careers arguing for one side or theother.
Turnsout, Zhang said, that both sides were correct. Nature and evolutionhave actually created a basic way for a cell to divide with a backupsystem that can work if the other approach fails.
The findings, Zhang said, add significantly to the basic understanding of cell biology
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