With John Watkins he developed the technique of cell fusion for the study of the physiology and genetics of higher cells .
Harris 's main interest was in cell biology and especially what was later to become the science of somatic cell genetics .
With John Watkins Harris developed the technique of cell fusion for the study of the physiology and genetics of higher cells .
Harris 's main interest was in cell biology and especially what was later to become the science of somatic cell genetics .