Steward literally shook apart cells from a carrot root and placed these individual cells in a rotation tube containing cell nutrients. The cells surprisingly began to divide and grew to form tissues. Some cell masses broke from the tissues and grew their own roots. When these massed were planted in soil, they developed into complete carrot plants. Steward's results surprised biologists because at the time it was thought individual differentiated cells would not divide and grow to form complete organisms. After the failure of Robert Briggs and Thomas J. King and other scientists to clone animals from differentiated cells, Steward’s results led some scientists to hold on to the belief that cloning from differentiated cells was not biologically impossible.
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