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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. Explain about Rheumatic Heart Disease? Rheumatic Heart Disease (RHD) is a very common cause of cardiovascular disorder in children and adolescents in India. This disease inv
discribe tha bantham and hookers systeam of classification
Extra-ocular muscles There are, as you know, six extra-ocular muscles. Out of these, four are recti(straight) and two are oblique. They control the position and movement of th
Explain Gelatin - Tests for Presence of Exoenzymatic Activity? Gelatin is an incomplete protein as it lacks amino acid tryptophan. It is a major component of connective tissue
Which of the following is not true regarding the immune response? Answer The immune response uses chemical and phagocytic cells to destroy foreign cells. Once initiated, the immune
what is the differences between spherical symmetry and radial symmetry
In the RBC, glucose can be oxidized to two primary products. One of the oxidation proucts is ribulose 5 phosphate, and the other is which of the following compounds? -lactate
Which of the following is true for a toe corticospinal interneuron that produces action potentials during voluntary movements of the big toe of the right foot? A. Its dendrites
A transport process in which physical (hydrostatic) pressure drives part of a fluid through a membrane that selects based on pore size
Highlight ten applications of conductometry and explain four in detail
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