errors in duplicating the DNA when splitting cells. there can be an insertion in the code, a deletion, and a change.
They compare the DNA of those found at the scene of the crime against any suspect.This can be achieved by using Electrophoresis.
Police use DNA evidence to run tests and find out who committed a crime.
Cancer.
these are all mutagenic agents:-ultraviolet radiation from sunlight -free radicals that are formed as by-products of aerobic respiration -aflatoxins that are found in moldy grains