What does gel electrophoresis reveal about DNA?

Answer 1

The size of the fragment of DNA can be revealed in gel electrophoresis

Electrophoresis is a process by which an electric field is used to move the DNA fragments through porous agarose gels.

The smaller fragments move faster than the larger ones. The sizes can be estimated by comparing their positions in gel to positions of DNA molecules whose sizes are known.

Source of figure: yourgenome.org

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Answer 2

Nicholas Ahn

Gel electrophoresis reveals information about the size and sometimes the charge of DNA molecules. It separates DNA fragments based on their size as they migrate through a gel matrix under the influence of an electric field. This technique helps in determining the size of DNA fragments, analyzing DNA samples for genetic testing, identifying genetic variations, studying DNA-protein interactions, and molecular cloning.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.