To determine the formation of zygotes (very sensitive to changes in temperature) between two haploidstrains of yeast (Saccharomyces cerevisiae) under treatment with microwaves of 9.4 and 17 GHz at power levels up to 50 and 60 mW/cm² and a SAR below 24 mW/g, or with conventional heating.
It appears that these microwaves do not exhibit significantgenetic effects even at power levels capable of increasing the temperature by a few degrees as revealed by zygote formation in yeast. Microwaves (9.4 GHz or 17 GHz) at a power density of 10 mW/cm² produced an increase in zygote formation equivalent to that produced by conventional heating (i.e equivalent to a rise in temperature of 0.5 or 1°C). Microwaves under these conditions had no effect on cell survival or the induction of cytolasmic "petite" mutations.
