英和和英

名詞

founder effect (plural founder effects)

1. (genetics, evolutionary theory) A reduction in genetic diversity resulting when a population is descended from a small number of colonizing ancestors.
   • 2006 November 20, Judy Pasternak, “Oases in Navajo Desert Contained 'A Witch's Brew'”, in Los Angeles Times‎:

     The view that Navajo neuropathy was purely inherited continued to have its adherents. It did seem logical. There were multiple cases within families. The syndrome had appeared suddenly, the way a “founder effect” disease might.