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Based on past detailed studies of rod-shaped bacteria such as Escherichia coil and Bacillus subtilis, it has been assumed that most bacteria grow by binary fission, a dispersed mode of growth involving insertion of new cell wall material uniformly along the long axis of the cell.
He said that apparently the fetus was the twin sibling resulted from binary fission inside the same placenta.
Microscopically, the growth consisted of many ovate to cylindrical yeast like cells dividing by binary fission (Fig.