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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 is the transport of substances done across the bryophyte tissues? How is this feature related to the general size of these plants? In bryophytes there are no water-conduct
why vegetative reproduction use in marchantia
Health Stroke Scale: Stroke is a leading cause of death, hospitalization, disability and health care expenditure in U.S. (Fonarow G. et al., 2012). Stroke is a medical condit
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Explain the Food preparation and Cooling - Canning? Food preparation - Preparation methods will change with the type of food. For fruit, cutting to size, washing, grading, peel
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which bone forms the non-moving muscle attachment in the hip joint
LOCOMOTION IN EARTHWORM - By contrection & relaxation of muscles waves are formed in body, generally from posterior to anterior. Setae are helpfull in locomotion. Rate of lo
nissles granule found in
Q. In which period of life does the formation of gametes begin in women? The meiosis that forms female gametes begins in the cells of the ovarian follicles before birth after t
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