In this chapter, we have focused on genetic systems present in bacteria and on the viruses that use bacteria as hosts (bacteriophages). In particular, we discussed mechanisms by which bacteria and their phages undergo genetic recombination, which allows geneticists to map bacterial and bacteriophage chromosomes. In the process, we found many opportunities to consider how this information was acquired. From the explanations given in the chapter, what answers would you propose to the following questions? How do we know that intergenic exchange occurs in bacteriophages?

Video transcript

Hello everyone and welcome to today's video. So which of the following recombinant do you anticipate to see when two virus strains with genotype? H. R. H plus R. And H. R. Plus? In fact a bacterial culture. All we have to do is cross over these two genotype in order to determine this. And we're going to perform that just now. So here we have what they will look like. If there is no recombination then we would just have the parental types. However crossing over occurs and we have these recombinant. So we have to implement this cross our event and the recombinant will be age plus R. Plus and H. R. So we're going to highlight them. If we look at our answer choices we can see that H plus R plus is present as well as H. R. So both answer choices A. And B. Are the correct answers or answer choice. E I really hope this video helped you and I have to see you on the next one.