Question

What is the origin of agarose, the matrix most commonly used in gel electrophoresis?

Options

• It is a natural polymer extracted from seaweeds

• It is a synthetic polyacrylamide resin synthesized in laboratories

• It is a structural polysaccharide purified from bacterial cell walls

• It is a fibrous protein isolated from bacteriophage capsids

Answer 1

Agarose is a natural polymer extracted from seaweeds that provides a sieving matrix through which DNA fragments separate according to size under an electric field.