Biology is the branch of science that primarily deals with the structure, function, growth, evolution, and distribution of organisms. It’s a methodological study of life and living things.
Biology is the scientific study of life. It spans multiple levels, from biomolecules and cells to organisms and populations12. All living things share common biological phenomena, such as reproduction, cell division, and the transmission of genetic material.
Shigella flexneri indicates the presence of catalase and the lack of cytochrome c oxidase since it is catalase-positive and oxidase-negative. When tested for urease and citrate utilization, Shigella flexneri usually produces negative results, indicating that it is unable to hydrolyze urea or use citrate as a carbon source. It results in a positive Methyl Red […]
Bacterial transformation is a critical process in molecular biology and genetic engineering that involves the uptake and incorporation of foreign DNA into bacteria. This natural phenomenon, initially identified in the early twentieth century, has been extensively used for scientific and biotechnological purposes. Scientists can use transformation to introduce new genetic material into bacterial cells, allowing
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Mycobacterium tuberculosis is pathogenic bacterium causes human tuberculosis (TB) .It is a distinct biochemical bacillus that reacts quickly to acid. A battery of tests is used to distinguish Mycobacterium tuberculosis from other mycobacteria and germs in order to identify it. The following is a summary of the essential biochemical tests and traits used to diagnose
The pathogenic bacterium Listeria monocytogenes is the source of listeriosis, a dangerous illness usually contracted by consuming tainted food. In order to distinguish Listeria monocytogenes from other bacteria, a battery of biochemical assays is frequently employed. Here are a few of the crucial exams. Key Test 1. Catalase Test 2. Gram Stain 3. Motility Test
Chlamydia trachomatis is a unique bacterium that must be identified using specific procedures since it is an obligate intracellular pathogen, which means it can only replicate within host cells. Because of its peculiar biology, C. trachomatis cannot be tested using traditional biochemical methods used on other bacteria. Instead, specific assays and molecular procedures are required
Biosafety levels (BSL) are a set of specific biocontainment precautions required to isolate dangerous biological agents in an enclosed laboratory facility. The levels are determined based on the potential risk posed by the infectious agents being handled, taking into account factors such as the agent’s pathogenicity, the severity of the diseases it causes, and the
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Bacteroides fragilis is a rod-shaped, Gram-negative, anaerobic, non-spore-forming bacteria that lives in the human intestine. It is a typical gut flora component, but it can turn pathogenic and cause illnesses if it escapes the gastrointestinal tract. Biochemical studies are required to identify and distinguish B. fragilis from other Bacteroides species and anaerobic bacteria. What is
What is Bioreactor? Specialized containers or setups called bioreactors are used to help bacteria or cells grow under supervision. It come in different varieties, such as photobioreactors and stirred tank bioreactors. Fermenters are another name for bioreactors, which are devices where fermentation takes place. It is a closed vessel or system used to produce medicines,
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Bacillus cereus is a Gram-positive, rod-shaped, facultatively anaerobic, motile bacterium well known for its capacity to produce heat-resistant endospores. It is widely distributed in soil, food, and the environment. B. cereus is a significant disease and spoiling bacterium in food products. It is capable of causing both foodborne diseases and opportunistic infections in people. What
Binomial nomenclature is a formal technique for identifying organisms that assigns them a specific identity based on two names: genus and species. These names are commonly derived from the Latin language. In scientific research, nomenclature assigns distinctive names to organisms based on certain features that separate them from others. Binomial Nomenclature Carl Linnaeus created binomial
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