Answer
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Hint: Blotting techniques were developed to discriminate fragments of nucleic acids and proteins. One of the processes is used to separate fragments of DNA and is known as electrophoresis.
Complete step by step answer:
In Southern blotting, the fragments of DNA are separated by AGE or PAGE that are cut by restriction enzymes. Then the blot is transferred to specialised membranes and visualised with labeled probes hybridization. The presence of a specific DNA sequence within a mixture via agarose gel electrophoresis has been determined with the use of the Southern blotting technique. RNA is being separated by Northern blotting. RNA molecules have defined lengths and they are shorter; cutting by restriction enzymes is not required. Nucleic acids have not been separated by Western blotting; it separates proteins in a mixture. With PAGE the proteins are usually separated, visualized with a labeled antibody against the proteins of interest.
Hence, option B: Southern blotting is the correct answer.
Note: To separate and characterize DNA, in molecular biology Southern blotting is a common technique used. To analyze protein post-translational modifications the eastern blot is a biochemical technique used such as lipids. Thus, the biochemical technique Eastern blotting can be considered an extension of Western blotting.
Complete step by step answer:
In Southern blotting, the fragments of DNA are separated by AGE or PAGE that are cut by restriction enzymes. Then the blot is transferred to specialised membranes and visualised with labeled probes hybridization. The presence of a specific DNA sequence within a mixture via agarose gel electrophoresis has been determined with the use of the Southern blotting technique. RNA is being separated by Northern blotting. RNA molecules have defined lengths and they are shorter; cutting by restriction enzymes is not required. Nucleic acids have not been separated by Western blotting; it separates proteins in a mixture. With PAGE the proteins are usually separated, visualized with a labeled antibody against the proteins of interest.
Hence, option B: Southern blotting is the correct answer.
Note: To separate and characterize DNA, in molecular biology Southern blotting is a common technique used. To analyze protein post-translational modifications the eastern blot is a biochemical technique used such as lipids. Thus, the biochemical technique Eastern blotting can be considered an extension of Western blotting.
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