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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.
Changes in the conformation of molecules - Qualitative Changes You may recall that linear chain of amino acids of a protein folds into a characteristic structure. Acidic resid
Basic characters of vertebrate classes
Metazoan Branches The Kingdom Animalia comprises all the multicellular animals (metazoans). These are divided into three branches: Mesozoa Parazoa Eumetazoa
Determine the net charge of the predominant form Asp at (a) pH 1.0, (b) pH 3.0, (c) pH 6.0, and (d) pH 11.0?
Cornea - Organogenesis of Eye and Limb The fully formed cornea contains 2-cell layered epithelium and the stroma made of extra cellular secreted materials. The bulk of the
Cleavage of fructose-1,6-bisphosphate Aldolase cleaves fructose-1, 6-bisphosphate to dihydroxyacetone phosphate and glyceraldehyde-3-phosphate in the reversible reaction.
Part of the endocrine system in humans, these 2 glands are small bodies located at upper end of every kidney. While these glands perform a range of functions, two of the most signi
Q. Explain about Celiac Disease? Gluten-sensitive enteropathy or, as it is more commonly called, celiac disease, is an autoimmune inflammatory disease of the small intestine. I
Q. Bird identity card. How are birds characterized according to examples of representing beings, basic morphology, respiration, skin, nitrogen waste, circulation,thermal control an
difference between optic nerve and auditory nerve
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