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Define Ziehl-Neelsen Staining Technique?
Ziehl-Neelsen staining is used for staining these bacteria. The technique was discovered first by Robert Koch during his pioneering investigations on tuberculosis and was the fore-runner of Ziehl-Neelsen stain used today for diagnosis of these organisms in laboratory. Acid fast bacteria are called so because once these cells get stained with basic fuchsin, these resist decolourization with acid alcohol as can be seen in margin illustiation. This acid fastness red stain is due to high lipid content particularly of mycolic acid in their cell wall. Mycolic acid, is a group of branched chain hydroxyl lipids, which bind covalently to peptidoglycan of cell wall giving the cell surface a waxy, hydrophobic consistency.
Consider cell with a diploid chromosome number of 4 (2n=4), one pair of the chromosomes is metacentric,the other is acrocentric. The metacentric is labeled a 1 a 1 while the acr
1) The oxidative phase generates NADPH The oxidative branch of the pathway generates NADPH and pentose-5-phosphate, through the following reactions: a) Glucose-6-pho
A biologist examines a series of cells and counts 140 cells in interphase, 10 cells in metaphase, 4 cells in anaphase and 7 cells in telophase. if complete cell cycle requires 24 h
Endomyocardial biopsy helps in understanding that carditis can cause CCF in patients with rheumatic heart disease but frequency of diagnostic features on EMB is found only in 17 pe
Explain therapeutic diet planning All detailed dietary modifications should be presented with choices, clear guidelines, menu guidance and supporting information as to al
Determine the concept of imitation in the learning process The concept of imitation in the learning process is also a key developmental concept for infants and young children
Enumerate the major substrates for gluconeogenesis The major substrates for gluconeogenesis are the glucogenic amino acids, lactate glycerol and (important in ruminant) propi
Principles Governing Cleavage a) The nucleus and mitotic achromatic figure tend to occupy the centre of active cytoplasmic density of the dividing cells, e.g., in isolecithal
Gene expression is controlled by chromatin state, _______ and _________. a. transcription factors and epigenetic regulators b. polymerases and control proteins c. delta and tau pro
Fracture - It is a break of a bone. Bone fracture are of many types - (i) Green stick fracture - It is merely a crack, the bone remains partly intact. (ii ) Sim
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