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A geneticist isolates two mutations in bacteriophage. one causes clear plaques (c), other causes minute plaques (m). Previous mapping experiments have shown that the genes responsible for these two mutations are 8 map units apart. he mixes phages with genotype c+m+ and c-m- and uses the mixture to infect bacterial cells. He collects the progeny cells and cultures them on a lawn of bacteria; and observes 1000 plaques. What numbers of the different types of plaques (c+m+, c-m-, c+m-, c-m+) should he expect to see?

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