title: Protein polymorphisms in the hard clams Mercenaria mercenaria and Mercenaria campechiensis.
mesh_terms: D000818:Animals; D049872:Bivalvia / Q000201:enzymology*; D004950:Esterases / Q000096:biosynthesis*; D008291:Malate Dehydrogenase / Q000096:biosynthesis*; D010088:Oxidoreductases / Q000096:biosynthesis*; D010641:Phenotype; D011110:Polymorphism, Genetic; D013778:Tetrazolium Salts
chemical_list: D013778:Tetrazolium Salts; D010088:Oxidoreductases; D008291:Malate Dehydrogenase; D004950:Esterases