Answer Posted / sonia
in some cases usually nonpathogenic bacteria tend to
overgrow the pathogenic ones, in such cases , substances
which have a stimulating effect on the bacteria to be grown
or an inhibitory effect on those to be suppressed are
incorporated in the medium. if such substances are added to
a liquid medium the result is an absolute increase in the
numbers of wanted organisms relative to the other bacteria.
such media are called enrichment media..
eg. tetrathionate broth.
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
You receive a package that contains plants that may have been injured by herbicide drift or may have a virus. With no further information, how might you determine which is the problem?
What are the Problems associated with P1 transduction?
You suspect microscopic grains on a slide that you exposed to the outside air to be pollen. To test this, you place a drop of a sugar solution on the slide with the grains. If this is pollen, what will happen?
What is polychrome methylene blue?
what are the microbes that grow if proper temperatures are not maintained during fermentation process?
Describe the Stabilisation of Barium sulfate precipitate in McF' scale ?
What would you do if it was a slow day in the lab?
What are the differences in posttranslational modification ?
Describe about pH indicating plates?
What are the enzymes produced by streptococci?
What are the various modifications of gram stain?
Describe the Reed and Muench Method ?
What are the Minimal Media Recipes for Fed-Batch Cultures of EColi ?
How to keep stock for fungal strain?
Something about pbr322 and cloning blunt ended insulin ?