its presence at a locus will super-cede any recessive alleles. These systems are very common in Mendelian genetics with Punnett Squares, where – for example – the alleles AA and Aa would exhibit the dominant gene, while
Cattle breeding populations are susceptible to the propagation of recessive diseases. Individual sires generate tens of thousands of progeny via artificial insemination. The frequency of deleterious alleles carried by such sires may increase considerably