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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.
Define Primary Prevention - preventive strategies for Food Allergy? Focuses on blocking sensitization and development of IgE-mediated response. These strategies would be useful
Explain Submarginal Curved - Limited Mucoperiosteal Flaps - Also called: semilunar flap, - Curved incision in the alveolar mucosa and the attached gingival. - NO advantag
Explain Procedure for Separation of Amino Acids by Paper Chromatography? Now carry out the procedure following the steps given herewith: 1. Take a circular Whatman No 1 filt
What is the effect of physical activity on health? The Surgeon General's report (1996) summarizes the effects of physical activity on health as follows. Overall Mortality: H
Nervou s System It is controling system of body. Ectodermal in origin. This system is made up of nervous tissue. Nervous tissue is made up of neuron & neuroglial
Each of the three NADH molecules formed per turn of the cycle yields 3 ATPs and the one FADH2 yields 2 ATPs by oxidative phosphorylation (whereas some measurements indicate in whic
How Drugs Increase Food Intake? You must understand that drugs may also increase food intake. This is because they can: Stimulate appetite : This is a common side effect
Explain Complex or Undefined Media? Here, the exact composition of the medium is not known. It contains some complex components of plant and animal extracts whose exact chemica
For a somatic cell with 2n = 4, which of the following is true? (Note: G1- growth phase 1, G2 - growth phase 2, M - metaphase, P - prophase and T - telophase) a. (Number of
Q. How the DNA nanoarchitecturing works? DNA Nano architectures constructs that can be self-assembled from branched DNA molecules. Their components can be simple branched speci
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