Question

Result of agarose gel electrophoresis practical

Answer 1

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.

Protein and RNA contamination in gel electrophoresis results

The RNA molecules are lighter than the DNA. So, the RNA migrates faster than the DNA and DNA migrates faster than the protein because proteins are heavier than DNA.