10. Which area on a streak plate will contain the greatest amount of growth? The least amount of growth? Explain your answers. 11. What is a colony (as viewed on an agar plate)? How can a pure culture be obtained from a mixture of bacteria? 12. What is a selective agar? Why can it be of importance?

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Microbial Isolation

Isolation of the microorganisms in microbiology is the process of developing a pure culture by separating one species of microbe from a mixture of many other species. A pure culture is a culture that contains only one species of microbe.