| enzyme polymorphism in ascaris suum (nematoda). | the potential of multilocus electrophoretic studies for providing insight into the population biology of parasitic organisms was studied using the swine parasite ascaris suum suum. thirty-eight loci encoding enzymatic or nonenzymatic proteins have been resolved in extracts of adult worms by starch-gel electrophoresis. a preliminary study of variation in ascaris from eastern iowa revealed an average heterozygosity of 6.6%. allele frequencies at six polymorphic loci were similar in males and femal ... | 1982 | 6889643 |