17. Mutation, Repair, and Recombination
Induced Mutations
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6PRACTICE PROBLEM
A culture of haploid bacteria is exposed to a mutagenic agent and plated on a nutrient-rich medium. Six colonies are selected and transferred to a new plate for further study. The colonies are then replicated onto minimal media with or without specific amino acids. The results are as follows:
Which of the following colonies is most likely to have a mutation in the gene responsible for histidine synthesis?
A culture of haploid bacteria is exposed to a mutagenic agent and plated on a nutrient-rich medium. Six colonies are selected and transferred to a new plate for further study. The colonies are then replicated onto minimal media with or without specific amino acids. The results are as follows:
Which of the following colonies is most likely to have a mutation in the gene responsible for histidine synthesis?