title: Nucleotide and copy-number polymorphism at the odorant receptor genes Or22a and Or22b in Drosophila melanogaster.
mesh_terms: D000818:Animals; D029721:Drosophila Proteins / Q000235:genetics* / Q000378:metabolism; D004331:Drosophila melanogaster / Q000145:classification / Q000235:genetics* / Q000378:metabolism; D018628:Gene Dosage; D010802:Phylogeny; D011110:Polymorphism, Genetic; D018035:Receptors, Odorant / Q000235:genetics* / Q000378:metabolism
chemical_list: D029721:Drosophila Proteins; C496847:OR22a protein, Drosophila; D018035:Receptors, Odorant