Lack of polarity of DNA injection by Escherichia coli phage lambda.
D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D002586:Cesium; D002874:Chromosome Mapping; D003090:Coliphages / Q000254:growth & development / Q000528:radiation effects*
D002247:Carbon Isotopes; D002586:Cesium