title: Tandem duplication of genes in phage T4.
mesh_terms: D000483:Alleles; D002869:Chromosome Aberrations; D002874:Chromosome Mapping; D003090:Coliphages / Q000528:radiation effects*; D003433:Crosses, Genetic; D004279:DNA, Viral / Q000528:radiation effects; D004171:Diploidy; D004307:Dose-Response Relationship, Radiation; D005796:Genes; D009154:Mutation; D011831:Radiation Genetics; D014466:Ultraviolet Rays
chemical_list: D004279:DNA, Viral