title: The topography of lambda DNA: isolation of ordered fragments and the physical mapping of point mutations.
mesh_terms: D001483:Base Sequence; D002499:Centrifugation, Density Gradient; D002869:Chromosome Aberrations; D002874:Chromosome Mapping; D003090:Coliphages / Q000032:analysis*; D004279:DNA, Viral / Q000032:analysis* / Q000302:isolation & purification; D005796:Genes; D008970:Molecular Weight; D009154:Mutation; D011995:Recombination, Genetic
chemical_list: D004279:DNA, Viral