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Define Principle for Simple Staining of Bacterial Cultures?
In simple staining, a single staining agent preferably a basic dye is used. Commonly used basic stains are carbol fuchsin, crystal violet and methylene blue. Different exposure times are used for different dyes, e.g. for carbol fuchsin 15-30 seconds, crystal violet 20-60 seconds and methylene blue 1-2 minutes. Being positively charged, these binds strongly to bacterial cells, which have negative charge on their cell surface. Simple staining gives idea regarding size, shape and arrangement of cells. Its value lies in its simplicity and ease of use.
how biochemical evidence proof DNA as a genetic material?
What is Subphylum Vertebrata explain? This large group of animals takes its name from its distinguishing feature: the vertebral column, or the backbone. The backbone made of se
Optic vesicle We have explained earlier that the presumptive material for the optic vesicles lies in qe eye field in the anterior region of the early neural plate. Experiments
Define Decreased oxygen availability at high altitude (Hypobaric hypoxia)? The governing biophysical factor at high altitude is decrease in barometric pressure with increase in
Protozoan phyla
Define Sample Titration - estimation of vitamin c in a solution? Take the given unknown solution provided to you in a 100 ml volumetric flask. Dilute the sample ascorbic acid s
Lactate dehydrogenase (LDH) is one of the important enzymes in glycolysis which catalyzes the interconversion of pyruvate and lactate as follows: Functional lactate d
What are the main water properties that make water special for life? The water properties that make water biologically significant are molecular polarity, thermal stability (el
What are the major terrestrial biomes? The main terrestrial biomes are: tundra, taigas (or boreal forest), temperate forests, tropical forests, grasslands and deserts.
Polyarthritis 1) Gonococcal - Therapeutic trial of pencillin may help in diagnosis of gonococcal infection. 2) Viral infections such as rubella and hepatitis B may have
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