State the principle of gel electrophoriesis. Mention
2 apptications of this technology in bio-technology?
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Answer:Gel electrophoresis is a technique used to separate DNA fragments according to their size. DNA samples are loaded into wells (indentations) at one end of a gel, and an electric current is applied to pull them through the gel. DNA fragments are negatively charged, so they move towards the positive electrode.
Applications:
In the separation of DNA fragments for DNA fingerprinting to investigate crime scenes. To analyze results of polymerase chain reaction. To analyze genes associated with a particular illness. In DNA profiling for taxonomy studies to distinguish different species.
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