A phenomenon that is observed when a small subgroup of a larger POPULATION establishes itself as a separate and isolated entity. The subgroup's GENE POOL carries only a fraction of the genetic diversity of the parental population resulting in an increased frequency of certain diseases in the subgroup, especially those diseases known to be autosomal recessive
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Gene Pool : Livestock / Committee on Managing Global Genetic Resources: Agricultural Imperatives, Board on Agriculture, National Research Council
