Essential Genetics 6th Edition by Daniel Hartl

Exercise 20

In the mouse, a dose of approximately 1 sievert (Sv) of x rays produces a rate of induced mutation equal to the rate of spontaneous mutation. Expressed as a multiple of the spontaneous mutation rate, what is the total mutation rate at 1 Sv? Assuming that the total mutation rate is proportional to the x-ray dose, what dose of x rays will increase the mutation rate by 50 percent? What dose will increase the mutation rate by 20 percent?