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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.
Stretch Receptors Stretch receptors able of perception of muscle tension or stretch are distributed in the connective tissue related with muscles of many groups of animals. Th
Precautions for determination of iodine number of lipids? 1. If using the pipette for transferring the oil, allow the pipette to drain slowly and completely, as oil takes time
write down the division of cryptogamae and phanerogamae
BEE DISEASES - Suffer from nosema diseases caused by Nosema apis. SILK WORM DISEASES - Pebrine disease caused by Nosema.
What is the difference between osmosis and diffusion? Osmosis is the occurrence of movement of solvent particles (in general, water) from a region of lower solute concentration
Which of Mendel's postulates can only be demonstrated in crosses involving at least two pairs of traits? a) Segregation b) dominance/recessiveness c) independent assortment d) unit
B l ac k q u ar t e r The disease is otherwise known as black leg or emphysematous gangrene, and it is associated with severe toxaemia, emphysematous swelling of muscl
How All these exercises are active exercises All these exercises are active exercises that is active exercises are those type of physical activities carried out by the individ
Looking at what the academic world is publishing, microarray research is actually hot right now, and people haven't quite figured out what the best way is (some might argue if we s
Other Causes - Deforestation Natural enemies like termites, pests and several kinds of diseases affect the forests adversely. There is also massive destruction of forests beca
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