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Explain the Decolourizing Agent - Ziehl-Neelsen Method?
Acid alcohol - a mixture of 95% ethanol and 3% HCI - is used for decolourization. Before decolourization, smear is allowed to cool to make waxy substances hardened. As primary stain is more soluble in cellular waxes than in decolourizing solution, acid-fast bacteria retain the primary stain. However, all non-acid fast bacteria loose primary stain because of the lack of cellular waxes.
Q. What are the two major divisions of the chordate phylum? Chordates are divided into vertebrates and protochordates (urochordates and cephalochordates). Q. What are the d
Explain about the Biuret Method? The Biuret reaction was one of first colorimetric assays developed for protein estimation. It is most often used in applications requiring a fa
Describe the importance of Neuropsychological tests Neuropsychological tests are generally thought of as assessment instrument for a variety of cognitive, perceptual, and motor
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Using examples of invertebrate nervous systems how can the process of evolutionary cephalization be described? Considering the instance of invertebrates it is observed that ev
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What is the fundamental difference between protozoans and algae? The basic difference among protozoans and algae is the fact that protozoans are heterotrophs whereas algae are p
What is the approximate pH of the salivary secretion? Is it an acid or basic fluid? What are the main functions of saliva? The saliva pH is approximately 6.8. It is therefore a
define?
How do carrier proteins transport substances across cell membranes? Carrier proteins bind to a molecule of the substance on single side of the membrane, change shape, transpor
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