Comparing Partheno-Genetic Algorithm(PGA) with Traditional Genetic Algorithm(TGA) in their encoding methods,genetic operators,computing procedures and individual fitness,this paper points out that the function of crossover operators of TGA using ordinal encoding methods is implied in the genetic recombination operators of PGA and that every offstring of PGA remains most of the genetic features of its parent,though PGA is partheno-genetic and its genetic operation has essential difference from TGA. Thus PGA ...