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Currently, the API20E kit is just used to study gram negative bacteria, especially the Enterobacteriaceae.

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12y ago

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Why is streaking for isolation and why is it important?

Streaking is used to isolate individual bacteria on a plate by spreading them out in a pattern that allows for single colonies to form. This is important to obtain pure cultures for further testing and identification. Streaking helps prevent contamination and allows researchers to study the characteristics of a single bacterial strain.


Why is it possible to use a DNA sequence to identify bacteria?

Each bacterial species has a unique DNA sequence that can be used as a molecular fingerprint for identification. By comparing the DNA sequence of an unknown bacterium to a database of known bacterial sequences, scientists can determine the identity of the bacterium. This method is highly specific and accurate in distinguishing different bacterial species.


How Pulsed-Field Gel Electrophoresis differences from PCR identification of bacterial strain?

In using PCR to identify a bacterial strain, a single segment of DNA is amplified, typically an rRNA gene or a portion of it. The amplified fragment is then sequenced and the sequence compared to that of sequences in the databases. Since rRNA gene sequences are so conserved, this method does not have the resolution to distinguish individual strains of the same species, although it can be used for species identification. In PFGE, there is no amplification. Instead, restriction enzymes are used to digest chromosomal DNA to generate a characteristic pattern. Also, the detection method is staining of the DNA, not DNA sequencing


How can turbidity be used to count bacteria?

Turbidity can be used to estimate bacterial concentration in a sample by measuring the cloudiness or haziness caused by suspended particles, including bacteria. A higher turbidity level indicates a greater number of suspended particles, which can correlate with higher bacterial counts. While turbidity provides a rapid and indirect measure of bacterial presence, it may not differentiate between types of bacteria or account for non-bacterial particles, necessitating further analysis for accurate identification.


Which Bacterial strain developed from natural isolates by genetic manipulation can be used for treating Oil spill?

Metabolic engineering involves redirecting a cell's metabolism to achieve a particular goal using recombinant engineering. This technique has been used to create bacterial strains that degrade chlorinated ethenes through the addition of several cloned enzymes to the cell. Metabolic engineering has also been used successfully to handle difficult mixtures of pollutants.

Related Questions

Why is streaking for isolation and why is it important?

Streaking is used to isolate individual bacteria on a plate by spreading them out in a pattern that allows for single colonies to form. This is important to obtain pure cultures for further testing and identification. Streaking helps prevent contamination and allows researchers to study the characteristics of a single bacterial strain.


Why is it possible to use a DNA sequence to identify bacteria?

Each bacterial species has a unique DNA sequence that can be used as a molecular fingerprint for identification. By comparing the DNA sequence of an unknown bacterium to a database of known bacterial sequences, scientists can determine the identity of the bacterium. This method is highly specific and accurate in distinguishing different bacterial species.


How Pulsed-Field Gel Electrophoresis differences from PCR identification of bacterial strain?

In using PCR to identify a bacterial strain, a single segment of DNA is amplified, typically an rRNA gene or a portion of it. The amplified fragment is then sequenced and the sequence compared to that of sequences in the databases. Since rRNA gene sequences are so conserved, this method does not have the resolution to distinguish individual strains of the same species, although it can be used for species identification. In PFGE, there is no amplification. Instead, restriction enzymes are used to digest chromosomal DNA to generate a characteristic pattern. Also, the detection method is staining of the DNA, not DNA sequencing


What is strain and equivalent strain?

There are 6 vectors used to describe the strain field of an element. An equivalent strain is just a single numerical value used to represent the strain field.


What is the purpose of bacterial staining?

Bacterial staining is used to visualize and differentiate bacteria based on their cell wall composition, shape, and arrangement. This technique helps in identification and classification of bacteria, as well as in distinguishing between different types of bacteria in clinical diagnoses and research. Additionally, bacterial staining is useful for studying bacterial morphology, structure, and cellular processes.


What are the common biochemical tests used in identification of bateria?

The most common biochemical tests are gram stain, oxidase, catalase and coagulase tests. However, there are literally hundreds of biochemical tests that are commonly used to identify bacteria. For further information, check out MicrobeID.com, where you can find identification methods, keys, probabilistic databases, selective and differential media guides, as well as book reviews releated to bacterial identification. I would also recommend Bergey's Manual of Deterministic Bacteriology.


Can gentamicin injections be used for bacterial infection?

Yes, Gentamicin is effective against bacterial infections. However, gent is not used for all bacterial infections.


Can a passport be used as a valid form of identification?

Yes, a passport can be used as a valid form of identification.


Can an expired passport be used as a form of identification?

No, an expired passport cannot be used as a form of identification.


What is a strain gauge used for and how does it work in measuring mechanical strain?

A strain gauge is a device used to measure mechanical strain, which is the deformation of an object under stress. It works by changing its electrical resistance in response to the strain applied to the object it is attached to. This change in resistance is then converted into a measurable electrical signal that can be used to determine the amount of strain the object is experiencing.


Which Bacterial strain developed from natural isolates by genetic manipulation can be used for treating Oil spill?

Metabolic engineering involves redirecting a cell's metabolism to achieve a particular goal using recombinant engineering. This technique has been used to create bacterial strains that degrade chlorinated ethenes through the addition of several cloned enzymes to the cell. Metabolic engineering has also been used successfully to handle difficult mixtures of pollutants.


What staining procedure will be used to observe bacteria in the sputum sample?

A Gram stain is commonly used to observe bacteria in a sputum sample. This staining procedure helps visualize the bacterial cell wall structure and arrangement, aiding in the identification of different bacterial species.