Ley R D
Basic Life Sci. 1975;5A:313-6. doi: 10.1007/978-1-4684-2895-7_41.
Bromodeoxyuridine-containing regions approximately 1.5 X 10(4) Nucleotides in length, and at intervals equivalent to the pyrimidine dimer content of the DNA, have been observed in the parental DNA of an excision-defective strain of Escherichia coli exposed to 10 ergs mm-2 at 254 nm followed by prolonged incubation in the presence of bromodeoxyuridine.