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Explain Counter Stain - Ziehl-Neelsen Method?
Methylene blue is used to stain previously decolourized cells. All non acid-fast bacteria de-stained by acid alcohol now absorbs counter stain and takes on its blue colour. All acid-fast bacteria remained red in colour due to primary stain.
Genus Mycobacterium shows acid fastness. These are aerobic, slightly curved or straight rods that sometimes branch or form filaments. These filaments readily break down into rods and coccoid bodies, when disturbed. Some grow very slowly. Some are free-living saprophytes and some are pathogens, e.g. M. bovis could cause tuberculosis in cattles, M. tuberculosis causes tuberculosis in humans, M leprae causes leprosy in humans. Acid-fast stain has a diagnostic value in identifying these pathogenic mycobacteria.
Properties of Sols Sol, is a solid liquid dispersion with solid or semi-solid particles dispersed in a continuous liquid phase. For e.g. starch in cold water. Sols exhibit ch
Assume you were given a mixture consisting of one molecule each of all possible sequences of a smallish protein of molecular weight 4800 daltons. If the average molecular weight of
Problems with untreated/ammoniated crop residues Besides the low energy and protein contents, crop residues generally contain low content of minerals such as Calcium, Phosphor
What is gluconeogenesis? Highlight its significance giving any two examples Gluconeogenesis (i.e synthesis of new glucose) is the synthesis of carbohydrate from non-carbohydrat
Magnesium Magnesium is closely related to calcium and phosphorus in its dispersion and functions in the body. Most of the body’s magnesium is found in bones and muscles. Grass
Q. What are the major types of lipids? The main types of lipids are phospholipids, triglycerides (fats and oils), waxes and steroids.
Q. What is the main molecule responsible for the absorption of photic energy for photosynthesis? And where is that molecule located in photosynthetic cells? The chlorophyll mol
Pulmonary edema is life-threatening condition and therefore, treated as a medical emergency. As is the case with chronic stable heart failure, identification and correction of any
#question about fish
What are the differences between the two domain
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