負ふの選せん択たくMeanings1nounnegative selection; purifying selectiongeneticsTechnical term in genetics referring to the removal of deleterious alleles from a population.負ふの選せん択たくは有ゆう害がいな突とつ然ぜん変へん異いを集しゅう団だんから取とり除のぞく。Negative selection removes harmful mutations from the population.