申論題

34. Superinfection of lysogenized -infected (E) coli is prevented because (A) the superinfecting phage DNA is rapidly degraded by the host. (B) the superinfecting phage DNA is inhibited by excess repressor binding. (C) the superinfecting phage cannot replicate due to insufficient nucleotide precursors. (D) the superinfecting phage DNA is rapidly degraded by the host and the superinfecting phage DNA is inhibited by excess repressor binding are correct.