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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.
How are the excretory systems of the three main arthropod classes constituted? In crustaceans a pair of excretory organs known as green glands exists. The green glands collect
A person is declared to be dead upon the irreversible cessation of spontaneous body functions; brain activity, or blood circulation and respiration. However,only about 1% of a pers
Problem 1: How does the FDA's post marketing surveillance system works? Show FDA's post marketing surveillance system Explain about Adverse Event reporting system and
What is the classification scheme for echinoderms?
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Diagnostic Clues 1) When pallor, decrease in temperature, and numbness are the only complaints, viability of the limb usually not threatened. A condition of pain, pallor,
What are the uses of microorganisms
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How many grams of sodium dodecyl sulfate (mw = 288.37) would you dissolve in 80 mLs of water to make a 20% solution of SDS?
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