The effect of temperature variation on the multiplication rates of two strains of Amoeba proteus and the corresponding heterotransfer strains obtained by transplantation of nuclei between the ‘parent’ strains, has been studied. The two ‘parent’ strains multiply at a similar rate at 17° C but at different rates at 27° C and 11° C. The multiplication rates of the heterotransfers follow the cytoplasmic ‘parent’ at the low temperature and the nuclear ‘parent’ at the higher temperature.

This content is only available via PDF.