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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.
Development of Reserves - Conservation of Wildlife Establishment of Biological reserves, National parks, Forest reserves, Wildlife refuges and Biosphere reserves are effective
What two biotic factors could affect an antelope living in the Serengeti? The biotic factors that may affect an antelope living in the Serengeti could be:predation by carnivore
Which of the below terms is used to describe the formation of fibrous tissue where it generally does not exist? Is it: a) Fibrosis b) Fibrogenesis c) Fibrositis d) Non
what are the general characters of nonchordates, explain
Describe the Complete transposition of great arteries ? Lethal, relatively frequent malformation. Without treatment, it results in 30 per cent mortality within the first week o
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Sources of vitamin C It is found in many of the natural foods like fresh citrus fruits like limes, lemons and oranges are rich sources of vitamin C. The best and the chea
Enumerate the term - pathognomic sign A comprehensive assessment ideally uses all four approaches. Some forms of specialised assessment rely heavily on pathognomic signs, behav
Q What is the role of messenger the ribosomes and RNA for the protein synthesis? The mRNA is produced within the cellular nucleus and migrates to the cytoplasm where associated
Q. What is tubular secretion? What are some examples of substances secreted through the renal tubules? Uric acid, Ammonia, potassium bicarbonate and hydrogen ions, bases and me
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