title: Molecular biology. Enhancers, chromosome position effects, and transgenic mice.
mesh_terms: D000818:Animals; D004274:DNA, Recombinant; D005786:Gene Expression Regulation; D005914:Globins / Q000235:genetics*; D007136:Immunoglobulins / Q000235:genetics*; D051379:Mice
chemical_list: D004274:DNA, Recombinant; D007136:Immunoglobulins; D005914:Globins