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How CAMPYLOBACTERIOSIS occurs in humans
C. jejuni frequently contaminates raw chicken. Survey shows that 20-100% of retail chickens are contaminated. Many healthy chickens carry these bacteria in their intestinal tracts. Raw milk is also source of infections. The bacteria are often carried by healthy cattle and by flies on farms. Non-chlorinated water may also be a source of infection.
Explain Precautions for Gram Staining of Bacterial Cultures? 1. Heat fix the smear, otherwise cells would be washed off. 2. Fresh 24 hrs old culture should be used. Gram var
Chemical bonding : The present matter of earth contains atoms bound in groups of two or more called molecules. Their binding capacity is called chemical reactivity; It depends upo
Explain about the Conjugated proteins? The phospho proteins and the metallo proteins are loose (as with phosphate carrying protein) or tight (as with the phosphate in casein or
The chief water conducting elements of xylem in gymnosperms are: 1. Vessels 2. Fibres 3. Transfusion tissue 4. Tracheids Tracheids
Define Briefly about the Copper? As early as the times of Hippocrates, copper compounds were used to treat various diseases. However, in the 20" century, it was noticed that an
Define the Fehling's Soxhlet method (Lane-Eynon method)? This is a titrimetric method that is commonly used in food laboratories to estimate percentage of reducing sugars and t
Genetic engineering has been successfully used for producing: 1. Transgenic mice for testing safety of polio vaccine before use in humans 2. transgenic models for studying ne
Nucleic Acids Friedrich Miescher (1868) discovered the presence of these compound in protoplasm ,but Altman (1889) introduced the term Nucleic acid. These acids are the lar
Do moulds grow better where it is warm or cold? This time put single culture dish in a warm dark place and the other in a cold dark place. Study the dishes after a some days.
Why is not Mendel's second law always valid for two or more phenotypical traits of an individual? The Mendel's second law, or the law of the independent assortment, is valid fo
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