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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.
What is sodium-potassium pump ATPase? A. There is a net flux of sodium from intracellular spaces into luminal spaces through sodium-potassium pump ATPase spanning proteins l
A fire hose ejects a stream of water at an angle of 38.8 ° above the horizontal. The water leaves the nozzle with a speed of 26.6 m/s. Assuming that the water behaves like a projec
Give two cultural practices (not chemical) you could use to control black spot of rose. Based on your current knowledge of the disease triangle, why do you think these cultural pra
Match dehydration reaction and hydrolysis reaction to molecule synthesis and molecule break-down.
define the pattern of cleavage i all aspects
How does being able to reproduce asexually benefit the plant?
Define Absorption, Storage and Elimination of Riboflavin? Riboflavin is absorbed from the small intestine through the portal vein and is passed to all tissues via general circu
Determine the Luria's testing methods The choice of using items selected by Christensen to determine Luria's testing methods was, in retrospect, probably less crucial than the
Genitals check (in female), if labia majora covers labia minora. In premature infant labia minora is not covered fully by labia majora. check for discharge from vagin
Which of the following contributes to the degeneracy of the genetic code? A. The presence of 64 codons but only 20 amino acids. B. The ability of a single tRNA to bind to ma
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