Differential activity of homologous chromosome loci in ontogenesis.
D000483:Alleles; D000818:Animals; D001717:Birds; D003582:Cytogenetics; D004331:Drosophila melanogaster; D004798:Enzymes / Q000096:biosynthesis; D005399:Fishes; D005796:Genes; D005838:Genotype; D006579:Heterozygote; D006801:Humans; D007313:Insecta; D051379:Mice; D009030:Mosaicism; D010641:Phenotype; D011110:Polymorphism, Genetic; D011894:Rana pipiens; D012730:Sex Chromosomes; D014981:Xenopus
D004798:Enzymes