The effect of such toxic chemicals to the body is that they stimulate uncontrolled cell division. Uncontrolled cell division or cells proliferation may lead to cancer. The unchecked cell growth results to mutations in genes that can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death.
This is true because it's self pollination
The offspring inherited the dominant traits from the parent which made it automatically fully dominant. In DNA, dominant alleles mixed with recessive alleles will make 100% dominant offspring. The offspring inherited those chromosomes, which made the white trait not show up.
