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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.
Acellular and Cellular Organisms you should be able to characterise living and non- living matter. However, the boundary-line between the two is not very precise. As you have
Post-partum anoestrus Reproductive efficiency among animals greatly depends upon detection of estrus. This is even more important in reference to small herds managed under tro
Why are heterotrophic, autotrophic , and mixotrophic protists not classified as plants or animals ?
List the two primary targets to assess the good sugar control 1) There are two primary targets to assess the effectiveness of the management plan on glycemic (sugar) controls.
modes of nutrition in rat
what is rennin? how does it work? and what is its optimum pH level and activity temperature?
Open Mitral Valvotomy : Technique: A median stemotomy is done; peri cardium opened and stay sutures taken. After heparinisation ascending aorta is cannulated and then SVC
Glanders The disease, also known as equine nasal phithisis, farcy or malleus, is highly infectious anthropozoonosis and is caused by Burkholderia (earlier Pseudomonas) mallei.
Define drawbacks of Nutritional status that assessed traditionally? Nutritional status assessed traditionally with the use of anthropometric, biochemical clinical and dietary a
Q What is genetic code? Genetic code is the key for the conversion of the DNA nucleotide sequences and thus the RNA nucleotide sequences into amino acids sequences that will co
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