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Define Principle of fehling test - reduction tests?
Sugars that possess a free or potentially free (those that can be converted to free) aldehyde or ketonic group have a property of easily reducing metal ions such as copper, iron, mercury, bismuth etc. The alkali from Fehling's reagent acts on sugar molecules and converts them to enediols. These enediols are unstable and highly reactive and thus reduce cupric ions to cuprous ions. These cuprous ions combine with the hydroxyl ions to form cuprous hydroxide, which, on heating, forms a red precipitate of cuprous oxide.
Define Exclusion chromatography - basic separation technique? It is a chromatographic process, in which separation of the sample components takes place according to the molecul
Which kind of plant tissue is cork? The Cork is the material for instance, used to cap wine bottles, and is extracted from the suber of a special oak called cork.
Q. Various types of microorganisms? Microbes are single-cell organisms so tiny that millions can fit into the eye of a needle. They are the oldest form of life on earth. Micro
The scientist who described cells as “many little boxes” was
Oogenesis Oogenesis is the formation of ovum from oogonial cells that are formed in the ovary from primordial germ cells. And as in spermatogenesis it involves meiosis to pro
THORACI C CAVITY - Thoracic cavity is air tight. On dorsal side vertebral column present. On ventral side sternum present. On lateral side 12 pairs ribs present. On p
Soils of Tropical and Temperate Forests Although soils of tropical forests are generally poor in nutrients they are able to maintain high productivity under natural conditions
Define Elongation phase - mechanism of protein synthesis? Elongation: RNA polymerase moves along the DNA and sequential synthesizes the RNA chain. There is the repeated cycle o
how they are joints to each other
Question 1 What is standard operating procedure manual (SOP)? Do you think it is important to maintain SOPs in all the laboratories? List the advantages of maintaining SOPs in
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