How is the sea of electrons model is used to explain the physical properties of metals? electrons give off a charge, the greater or lesser the metal will depend on how packed the universe is in the metal, atoms and such.
Mutations can also be caused by exposure to specific chemicals or radiation. These agents cause the DNA to break down. This is not necessarily unnatural  even in the most isolated and pristine environments, DNA breaks down. Nevertheless, when the cell repairs the DNA, it might not do a perfect job of the repair.
This cause of mutation occurs when a piece of one chromosome is transferred to a non-homologous chromosome. The two chromosomes, that are often reciprocal, swap segments with each other. This genetic mutation is often responsible for chronic myelogenous leukemia.his cause of mutation occurs when a piece of one chromosome is transferred to a non-homologous chromosome. The two chromosomes, that are often reciprocal, swap segments with each other. This genetic mutation is often responsible for chronic myelogenous leukemia.