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drenegame61610
True! All DNA molecules have the same amount of charge per mass. Because of this, gel electrophoresis of DNA fragments separates them based on size only. Using electrophoresis, we can see how many different DNA fragments are present in a sample and how large they are relative to one another.

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luisvaschetto

The statement 'gel electrophoresis can tell you the sequence of a particular DNA fragment' is FALSE.

  • Gel electrophoresis is a technique widely used in molecular biology laboratories to separate DNA and proteins on the basis of their molecular sizes.

  • Gel electrophoresis consists in applying an electrical field through a gel that contains many small pores in which DNA fragments migrate.

  • The interval of time required for the migration of these fragments of DNA is proportional to the molecular size.

In conclusion, the statement 'gel electrophoresis can tell you the sequence of a particular DNA fragment' is FALSE.

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