Preparation of covalently closed and open circular DNA molecules of phage lambda.
D003090:Coliphages / Q000032:analysis*; D004270:DNA, Circular / Q000302:isolation & purification*; D004279:DNA, Viral / Q000302:isolation & purification*; D004926:Escherichia coli / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D008242:Lysogeny; D009994:Osmolar Concentration
D004270:DNA, Circular; D004279:DNA, Viral