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| Modern Genetic Analysis Chapter 9. The Genetics of Bacteria and Phages Working with Microorganisms Figure 9-1. Methods of growing bacteria in the laboratory. A few bacterial cells that have been grown in a liquid medium containing nutrients can be spread on an agar medium also containing the appropriate nutrients. Each of these original cells will divide many times by binary fission and eventually give rise to a colony. All cells in a colony, being derived from a single cell, will have the same genotype and phenotype.

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