Medical Definition of Balanced polymorphism
1.
A type of polymorphism where the many morphs are alleles. The polymorphism is maintained in a population rather than the norm of one allele eventually becoming the only allele in the population, because individuals who are heterozygous, or have two different alleles, are more adaptive (more fit) than individuals who are homozygous, or have two copies of the same allele.
(09 Oct 1997)
Lexicographical Neighbors of Balanced Polymorphism
Other Resources: