You Begin an Experiment with Two Populations of E

question 57

Multiple Choice

You begin an experiment with two populations of E. coli that are each composed of 100 cells. The cells are all genetically identical (i.e., they are clones) . You grow them up in flasks on a lab bench under identical conditions with unlimited resources. After 10,000 generations, you analyze the genome of each population. Do you expect the genomes of each population to be identical after 10,000 generations?

• A)Yes, because the starting populations were genetically identical.
• B)Yes, because resources were unlimited.
• C)Yes, because the same mutations will accumulate independently in each population.
• D)No, because natural selection was not a factor at any point in this experiment.
• E)No, because mutation and natural selection (once genetic variation is present)were factors in this experiment.

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