This is most likely the result of OXIDATION. When an apple is cut open, the cells of the apple are exposed to the atmosphere, the in built defense mechanism inside the apple that is supervised by certain enzymes react to this situation by reacting with oxygen and creating an oxidized brown layer which protects the apple from foreign bodies.
Northern blotting is the separation technique that can detect proteins in a complex mixture with the use of antibodies directed against a protein of interest.
Commonly used protein separation techniques include ion exchange chromatography, affinity chromatography, dialysis, ultrafiltration, size exclusion chromatography, and electrophoresis [sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), Isoelectric point electrophoresis, and chromatographic electrophoresis] are included.
Northern blot is a laboratory analysis method for testing RNA. In particular, purified RNA fragments are separated from biological samples (such as blood and tissue) by passing through a gel or matrix like a sieve with an electric current. This allows small fragments to move faster than large fragments.
Northern blotting is named because it resembles Southern blot, the first blotting technique named after biologist Edwin Southern. The main difference is that Northern blots analyze RNA rather than DNA.
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because he is a free person living in a free country so he can think for himself freely...!!!
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AMERICA!!!
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The cells of the body's surface form the outer layer of skin. Inside the body, epithelial cells form the lining of the mouth and alimentary canal and protect these organs. Epithelial tissues help in absorption of water and nutrients
The brain is protected by the bones of the skull and by a covering of three thin membranes called meninges. The brain is also cushioned and protected by cerebrospinal fluid. This watery fluid is produced by special cells in the four hollow spaces in the brain, called ventricles.
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