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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.
Zoonotic paramyxoviruses Three zoonotic paramyxoviruses (Hendra, Menangle, and Nipah viruses) emerged during 1994-2004 and all these viruses have a fruit bat reservoir. Humans are
excretory organ of agama lizard
Q. What is coronary disease? The Coronary disease, or the coronary insufficiency, is a disease in which there is total or partial obstruction of one or more of the arteries tha
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Q. Explain Shear Pin Model? Shear Pin Model: In this type, a shearing force is applied using a pin to shear the food Product. We are rupturing the element of the food product b
The frontal cortex is in what anatomical direction with respect to the occipital cortex? a. anterior b. posterior c. sagittal d. inferior
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comparitive chart on different types of respiration obserbed in different type of respiration organ of respiration , types of respiration,energy obtained , by product formed
Explain Non-surgical Endodontic Retreatment - Missed Canal Missed root canal as it hold pulp tissues and bacteria is major cause of endodontic failure. Mandibular molar
what is a seed?
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