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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.
In the eukaryotes replication of chromosomal DNA happens only in the S phase of the cell cycle. As for bacterial DNA, eukaryotic DNA is replicated figure: The euk
What is a species? The species is a set of living beings able to cross among themselves generating fertile offspring. This concept though does not apply to individuals of ex
natural selection
Production of Disease-free Plants Under normal conditions plants are infected by a wide range of pathogens such as bacteria, fungi, viruses, viroids, and insects like nematode
Determine Functions of Zinc in the Body? Zinc is an essential component of a large number of enzymes participating in the synthesis and degradation of carbohydrates, lipids, pr
Explain about the Food product development? Food product development is often commodity related. This type of research needs to be carried out in the pilot plants with the equi
How Parasitic infections are found? Parasitic infections are found throughout the world. With increasing travel, immigration, use of immunosuppressive drugs and the spread of A
Define Dark Field Microscope In this microscope, condenser system is modified, so that only reflected and refracted light by specimen forms an image. Here, the object is bright
Amino acids are the subunits ( or the monomers) from which proteins (polymers) are assembled. Each amino acid comprises of an amino functional group, and a carboxyl acid group, an
How Low Birth Weight cause Protein Energy Malnutrition? The beginning of PEM in children starts in US from the time of their birth. At least a third of the Indian children are
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