Question 10. What are the means for the number of nucleotides that changed along the left and the right lineages? How do these figures compare with your prediction? Provide a reason why the observed figures do not match with the prediction.

BICD100 HW6 Prokaryotic Genetics Question 1. You are interested in three genes in bacteriophage. The recessive mutant alleles cause plaque phenotypes that were creatively named fuzzy, shaky, and purple. Another lab published the following map of the three genes: fuzzy shaky 2.9 17.4 purple To verify the published map, you cross a purple shaky phage strain with a fuzzy phage strain by co- infecting E. coli at a high multiplicity of infection (every bacterium infected with both types of phage). You plate the resulting lysate and analyze the phenotypes of the plaques caused by the progeny phage. a. State the genotypes of the two parent phage strains: b. List all eight of the possible phenotypes that could result from this cross. If 400 phage plaques were examined from this cross, how many plaques of each of the eight phenotypic classes would you expect?

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