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Explain the Gram Staining technique?
Gram staining is a differential staining procedure which divides bacteria into two groups: Gram positive and Gram negative, based on staining properties. The gram stain was developed in 1884 by the Danish Physician, Dr. Christian Gram. It is one of the most important and widely employed staining procedure in bacteriology.
It is very useful and is almost essential in identifying an unknown bacteria. The basis of gram staining is the difference in cell wall composition of two types of bacterial cells. Gram positives have thick cell wall, made up of multi-layered peptidoglycan with extensive cross-linking. On the other hand, gram negative cell wall has a very thin peptidoglycan layer surrounded by outer lipid rich outer membrane. There is no outer membrane in case of gram positives. This difference in cell wall leads to decolourization of gram negatives but not gram positives by decolourizing agent i.e., ethanol or acetone.
respiration through moist skin
Gonorrhea Single doses of cefixime (Suprax) orally or ceftriaxone (Rocephin) intramuscularly (IM) are highly effective for uncomplicated anogenital or pharyngeal infection,
Explain the Composition of Sabouraud Agar? Sabouraud agar is used for cultivation of yeasts and moulds. Peptone - 10.0 gm Dextrose - 40.0 gm Agar - 15.0 gm Distille
Q. What is the typical shape of a population growth curve? How can the biotic potential be represented in the same way graphically? A usual population growth curve number of in
What is the fact of Molecular Biology on which DNA fingerprint is based? The DNA fingerprint, the method of individual identification using DNA, is based on the fact that the D
To show the direction of sprout growth in seeds Soak pumpkin or other large seeds overnight and fasten three of them on needles as shown in the diagram. Fasten single with the
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how to write character of porifera
Q. What are the main respective constituents of cell walls in bacteria, protists, fungi and plants? In bacteria the cell wall is made of peptidoglycans, amongst protists algae
Q. Explain H - Shaped Incision? This type of incision is especially useful for: The anterior maxilla or mandible. Accurately identified implant position. Exposure o
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