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Explain the Confirmed Test - Most Probable Number Test?
Confirmed test is carried out to rule out the possibility of any positive presumptive test because of the presence of noncoliform organisms which are not recognized as indicators of faecal pollution. The test is performed by streaking on selective and differential media, i.e., EMB agar and Endo agar from positive lactose broth tube in presumptive test.
EMB contains lactose and dyes eosin and methylene blue. Methylene blue inhibits the growth of Gram positive bacteria. Lactose fermenters produce acid which results in the precipitation of dyes on to coliform colonies producing dark coloured center and a green metallic sheen. These results are characteristics of E.coli, the major indicator of faecal pollution. Enterobacter aerogenes produce pink and mucoidal colonies while nonlactose fermenters produce colourless, transparent colonies. Endo agar is a nutrient medium containing dye fuchsin in decolourized state which produce a pink complex in presence of acid produced by coliforms resulting in pink colonies of E. coli.
Q. Haemodynamics of Tricuspid regurgitation? Right Atrial pressure tracing shows a prominent ‘v' wave and these cannot be appreciated in a patient with atrial fibrillation. RV
PROCARYOTES TO EUCARYOTES Procaryotes are the simple, unicellular organisms which do not have well defined nucleus, whereas eucaryotes are the complex;multicellular organisms w
Explain Indications for Surgery of Total Anomalous pulmonary Venous Connection ? Once TAPVC is diagnosed in a neonate with symptoms, operation should be undertaken immediately.
Ask question #Minimum 100 words what is joint accepted#
An incubation combination is set up having the single-stranded DNA template, DNA polymerase I, the primer and all 4 deoxyribonucleoside triphosphates (dTTP, dGTP, dCTP, dATP),
Collagen Helix Collagen has a large amount of glycine (25%) and proline (and hydroxyproline, 25%). They run parallel, form a right handed super-helix that is stabilized b
What is the coelom? To which structures do coeloms give birth? Are all animals coelomate? Coeloms are cavities delimited by mesoderm. Coeloms create the cavities where the inte
Most forms of cardiac diseases, like hypertension, valvular diseases and coronary artery diseases manifest as low output heart failure. Systemic vasoconstriction with cold extremit
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Explain Pseudocoelomates in classification animal kingdom? In terms of body organization, Pseudocoelomates fall between the Acoelomates and the Coelomates. The body cavity in
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