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Question: Gel electrophoresis is a laboratory method used to separate mixtures of DNA, RNA, or proteins according to molecular size. In gel electrophoresis, the molecules to be separated are pushed by an electrical field through a gel that contains small pores . This method is useful for applications like DNA fingerprinting, analyzing PCR results, and identifying genetic mutations. Based on this information, which of the following would be a common use for gel electrophoresis? A.Determining concentrations of specific enzymes in a solution. B.Measuring fat content by separating lipids. C.Identifying missing persons through DNA analysis. D.Duplicating DNA for cloning.
C. Identifying missing persons through DNA analysis. Gel electrophoresis is typically used in applications involving the separation and analysis of DNA, RNA, and proteins based on their size and charge. Identifying missing persons through DNA analysis (often referred to as DNA fingerprinting) is a common use of this technique. The other options listed (determining enzyme concentrations, measuring fat content, and duplicating DNA for cloning) are not typical uses of gel electrophoresis.
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