gene pool 
noun
The stock of different genes in an interbreeding population.The life of the mind, the life of the genome and the gene pool are characterised alike in this way by change, and change which feeds on the random....
- Selective elimination of genetically flawed newborns is necessary if we are to prevent their inferior genes from entering the gene pool.
- The genes of this particular chance group will then dominate the entire gene pool of populations to come.