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Explain Acidic Stains (anionic) - Types of Stains?
These are sodium, potassium, calcium or ammonium salts of coloured acids, which on ionization give negatively charged chromogen. These are best under acidic conditions. Most acidic dyes are unable to bind to the cell surface and also not able to penetrate into the cell because of repulsion by cell surface. These possess negatively charged groups, like, carboxyl (- COOH), phenolic, hydroxyl (-OH) so have a strong affinity to positively charged cell structure and macromolecules, like proteins. Example: Eosin, Picric Acid, Rose Bengal, Acid Fuchsin etc.
What are the processes that autotrophic beings use to produce organic material from inorganic substances? Autotrophic beings make organic material by photosynthesis or by chemo
2. Vaccinations against various childhood diseases have contributed to the entry of women, particularly mothers, into the fulltime workplace. a. Is this statement supported by data
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A fatty acid having of a hydrocarbon chain and a terminal carboxylic acid group that is shown in the figure. Most fatty acids are in biology have an even number of carbo
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Explain the types of double beam systems? Following are types of double beam systems: a) Dual beam in space type b) Dual beam in time type In type (a) separate detecto
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What are the main characteristics of the age pyramids of developed countries? In a stabilized human population the age pyramid has a narrower base as the reproduction rate is
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