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Explain the Primary Stain - Ziehl-Neelsen Method?
Ordinary aqueous stains like methylene blue, crystal violet, etc. are not able to stain most of the species of Mycobacteria. Carbol fuchsin, a red mixture of basic fuchsin and phenol can be used for staining these bacteria. Basic fuchsin, binds to carboxylic acid group of mycolic acid and phenol enhances penetration of basic fuchsin into lipid. Penetration is further enhanced by slow heating to steaming for 2-3 minutes. This drives the stain inside the cytoplasm. In modified Ziehl-Neelsen method, instead of heating, a wetting agent - Turgitol - can be added to the stain. This agent reduces surface tension between the cell wall of the mycobacteria and the stain. After staining, all cells become red.
Q. Modern infection control recommendations? Concern about transmission of disease has been expressed for thousand of years. Written guidelines for "disease control" are found
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Elaborates Class Trematoda and Monogenea - Flukes? Members of this Class are commonly known as the tapeworms. They resemble a long flat tape, or ribbon, and are parasitic, livi
Explain the Gall bladder disease - Effect of Obesity? Obesity is one of the risk factors for formation of gallstones. The super saturation of bile with cholesterol in obese ind
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Explain the role of calcium ions, troponin and F-Actin during contraction in striated muscles of humans?
Describe about the term - Neuropsychological assessment Neuropsychological assessment has its roots in neurology, the branch of medicine that focuses on the nervous system and
Making individual rock collections Peoples should be encouraged to make their own collection of rocks. Small pasteboard or cigar boxes will serve to be the collections. The spe
what is plasmodium
Maximum and minimum range of an animal with the factors of Ph Salinity Pressure Relative human
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