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Methyl Red (MR) Test

Methyl Red (MR) Test- Principle, Procedure, Results, Uses

Objectives of the Methyl Red (MR) Test Based on the generation of acid, to distinguish between two primary categories of facultative anaerobic enteric bacteria. Using a mixed-acid fermentation of glucose, it assesses the bacterial ability to produce stable acid end products. Principle of Methyl Red (MR) Test The MR test, also called the methyl red test, is …

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Millon's test

Millon’s Test- Definition, Principle, Procedure, Result, Uses

Millon’s Test Definition The only amino acid with a phenol group is tyrosine, which may be found employing Millon’s test, an analytical procedure. Tyrosine is specifically detected by Millon’s test. However, it does not identify proteins since it also recognises the phenolic group, which is present in other compounds. In addition to the Millon’s test, additional tests …

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Breathing Vs Respiration

Breathing Vs Respiration- Definition, 15 Differences, Examples

Breathing Vs Respiration Overview Breathing Definition Gases are exchanged during the biophysical process of breathing through intake and exhalation. Because it is an external process of ingesting oxygen and exhaling carbon dioxide through respiratory organs, breathing is also known as “external respiration.” All vertebrates need a highly branching network of tubes to breathe, connecting the …

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paper chromatography

Paper Chromatography-Definition, Types, Principle, Steps, Uses

What is Paper Chromatography? Planar chromatography processes are carried out on specialised paper in paper chromatography (PC), a subtype of planar chromatography. Because it can be used to isolate, identify, and quantify both organic and inorganic substances, PC is thought to be the most straightforward and commonly applied of the chromatographic procedures. German physicist Christian …

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Restriction Fragment Length Polymorphism (RFLP)

Restriction Fragment Length Polymorphism (RFLP)

Restriction Fragment Length Polymorphism (RFLP) Overview Restriction Using the method of fragment length polymorphism (RFLP), it is possible to distinguish between different species by examining patterns left over from the cleavage of their DNA. It is a technique that exploits variations between homologous DNA sequences. A restriction fragment length polymorphism is comprised of alternative alleles …

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Endospore Staining

Endospore Staining- Types, Principle, Procedure And Interpretation

Endospore Staining Definition Introduction The vegetative phase of a bacterial cell is referred to as a “typical bacterial cell.” When given favourable environmental circumstances, including the supply of nutrients, temperature, water, and oxygen, it may multiply without restriction. However, certain bacterial species are able to create a protective layer to shield themselves from harsh climatic circumstances, including …

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Seliwanoff’s test

Seliwanoff’s Test- Definition, Principle, Procedure, Result, Uses

Seliwanoff’s test definition The Seliwanoff’s test is employed to differentiate between carbohydrates containing an aldehyde group and those containing a ketone group (ketose) (aldoses). This test employs a timed colour reaction peculiar to ketohexoses. Objectives of Seliwanoff’s test to evaluate whether or not a sample contains ketohexoses. to separate aldoses from ketoses. Principle of Seliwanoff’s …

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Amazing 27 Things

Amazing 27 Things Under The Microscope With Diagrams

Amazing 27 Things Overview 1. Amoeba under the microscope A monocellular creature belonging to the kingdom Protozoa is an amoeba. Being a eukaryote, it contains a nuclear membrane, membrane-bound genetic material, and membrane-bound cell organelles. Amoebae move by crawling, and this movement is caused by their pseudopodia, which are a specific kind of plasma membrane. …

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Osmosis

Osmosis-Definition, Types, Examples, (Osmosis Vs Diffusion)

Osmosis Definition Osmosis is a frequent biophysical phenomenon observed in biological systems in which solvent molecules migrate through a semipermeable barrier towards an area with a high solute concentration. It is a form of passive transport that attempts to equalise the concentration of solutes throughout a semipermeable barrier. It is a frequent mechanism that occurs in …

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Mannitol Salt Agar

Mannitol Salt Agar (MSA)-Composition, Principle, Preparation, Results, Uses

Mannitol Salt Agar (MSA) Overview Staphylococcus aureus is isolated and identified from clinical and non-clinical materials using Mannitol Salt Agar (MSA), a selective and differentiating medium. It promotes the development of some bacteria while inhibiting the growth of others, and it is advised for the identification and enumeration of coagulase-positive Staphylococci in milk, food, and …

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