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Explain the Indole Production Test?
Many microorganisms produce an enzyme tryptophanase which oxidizes amino acid tryptophan to produce pyruvic acid, indole and ammonia. We can analyze the production of tryptophanase by using SIM agar containing tryptophan. The presence of indole is then detected by adding Kovac's reagent which contains p-dimethyl amino benzaldehyde, butanol and hydrochloric acid. It produces a cherry-red reagent layer with indole (positive test).The role of acidified butyl alcohol is to extract the indole into the reagent layer which then react with dimethyl amino benzaldehyde.
Pre-procedural mouth rinse Patients' use of a an anti-microbial mouthwash of 0.12% chlorhexidine gluconate solution for 30 seconds prior to intra-oral procedures will reduce th
what is rennin? how does it work? and what is its optimum pH level and activity temperature?
Define role of Lipids in Controlling Gene Expression? In the lipogenic pathway, the genes that encode the enzymes of the fatty acid synthase complex are co-ordinately expressed
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Advantages and Disadvantages: of Organizational Charts Advantages a) Defining the Organizational Relationship Without a,chart, many people might view the organization as
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Q. What is the epidemiological association between hemophilia and HIV infection? In the past the blood banks did not usually perform HIV detection tests and many hemophilic pat
The next set of lectures in this course cover a number of topics including fermenter design, power consumption, oxygen transfer and mixing. The aim of these lectures is to underst
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Q. Are there any bacteria made of more than one cell? There are no pluricellular bacteria. All bacteria are unicellular prokaryotic.
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