genomes and mutagenesis n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Genomes and mutagenesis PowerPoint Presentation
Download Presentation
Genomes and mutagenesis

Loading in 2 Seconds...

play fullscreen
1 / 8

Genomes and mutagenesis - PowerPoint PPT Presentation


  • 116 Views
  • Uploaded on

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.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Genomes and mutagenesis' - metta


An Image/Link below is provided (as is) to download presentation

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.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide3
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.

- Mutagen causes reversion mutations, and colonies start to appear around the disk.

Figure 9.22

slide4
The Ames assay can be modified to test for the mutagenicity of chemicals processed in the liver.

Figure 9.23

slide6
Transposons are complex transposable elements that carry additional genes (e.g., drug resistance).

Mobile Genetic Elements

Figure 9.34

fig 11 33

Gene A

Gene 1

Gene 2

Gene 3

Fig. 11-33

Transposon

Chromosome

Transposition

Disrupted gene 2

Gene 1

Gene A

Gene 3

Chromosome