A bacteriophage attaches itself to the cell wall of a bacterium and injects DNA. Through generalized or specialized transduction, we produced bacteria that carry prophage and remain unharmed and go through several rounds of binary fission forming a colony. We treat the bacteria from this colony with strong doses of ultraviolet light we found bacterial normal colonies growing. Why are prophages(bacterial DNA and viral DNA containing bacteria) showing resistance to go lytic cycle after treatment with strong doses of UV?

Need to general and specific explanation.