The Nyquist plots of female and male DNA Samples were recorded using electrical impedance spectroscopy. The recorded curves were of the same features. The peak of each curve and its half-width were increased and shifted to higher impedance component values as, the expresser time increased 0,5,10,15,20,25 and 30 min, under the effect of any of laser radiation or gamma radiation. The obtained results for the female healthy DNA samples were: The electrical resistance was increased from 346.11KΩ to 922.4KΩ, while the electric capacity was increased from 15.3μF to 24.6μFunder the effect of laser radiation of constantPower100mW, (ℷ=532nm).These results under the effect of gamma radiation were the increase of the electric resistance from 145.37KΩ to 161.45KΩ and the increase of the electric capacity from 9.5μFto 14.1μF. For the male healthy DNA samples, the obtained results were: The electric resistance increased from 140.12KΩ to 929.17KΩ, while the electric capacity was increased from 2.02μF to 7.10μF. This means that the DNA efficiency of the female samples decreased more than that of the male samples. The effect of cement dust on female and male healthy DNA Samples was studied. The selected cement dust concentrations were 0, 1, 2, 3, and 4μL. The results of the DNA female samples were anincreasein the electrical resistance from 131.30KΩ to 2853.34KΩand the increase of the electric capacity from 7.86μF to 71.4μF. The obtained results of the DNA healthy male, samples were the increase of the electric resistance from 583.07KΩ to 4440KΩ and the electric capacity from 19.9μFto 4.82μF. These results confirm the decrease of the female DNA efficiency as a result of the increase of the cement dust concentration, more than that of the DNA male sample .