In a bacterial species genes q,r,s,and t were mapped in minutes through interrupted mating experiments.The results placed q and s on the two outer ends,but r and t were not resolvable by minutes.You have discovered no phage that can infect this species.If you have a q r s t Hfr strain and a q^-^{r- s- t-} F^- strain,how could you measure the distance between the genes in map units?

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The Answer of In a bacterial species genes q,r,s,and t were mapped in minutes through interrupted mating experiments.The results placed q and s on the two outer ends,but r and t were not resolvable by minutes.You have discovered no phage that can infect this species.If you have a q r s t Hfr strain and a q^-^{r- s- t-} F^- strain,how could you measure the distance between the genes in map units?

In a Bacterial Species Genes Q,r,s,and T Were Mapped in Minutes