Genomes and mutagenesis. Figure 9.15. The Ames test relies on a mutant bacterial strain that is defective in hisG. - Cannot grow on a medium lacking histidine. Identifying Mutagens. - A mutagen-containing disk is placed on an agar plate with the mutant.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
- Cannot grow on a medium lacking histidine
- A mutagen-containing disk is placed on an agar plate with the mutant.
- Mutagen causes reversion mutations, and colonies start to appear around the disk.
Mobile Genetic Elements