Definition of polymorphism
:the quality or state of existing in or assuming different forms: such as
a (1)
:existence of a species in several forms independent of the variations of sex
(2)
:existence of a gene in several allelic forms;
also
:a variation in a specific DNA sequence
(3)
:existence of a molecule (such as an enzyme) in several forms in a single species
b
:the property of crystallizing in two or more forms with distinct structure
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