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Polymorphism
Polymorphism is a form of genetic variation in which distinct nucleotide sequence can
exist at a particular site in a DNA molecule. This heritable mutation is observed at a
high frequency in a population. It arises due to mutation either in somatic cell or in
the germ cells. The germ cell mutation can be transmitted from parents to their
offsprings. This results in accumulation of various mutations in a population, leading
to variation and polymorphism in the population. This plays a very important role in
the process of evolution and speciation.
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