Question

____a technique in which charged molecules, such as protein or DNA, are separated according to physical properties as they are forced through a gel by an electrical current

Answer 1

Gel electrophoresis is a technique used to separate charged molecules based on physical properties. It involves using a gel and an electric current to force the molecules to migrate and separate based on size and charge. Dyes can be used to visualize the separated molecules.

Step-by-step explanation:

Gel electrophoresis is a technique used to separate charged molecules, such as proteins or DNA, based on their physical properties. In gel electrophoresis, a gel made of agarose or polyacrylamide is used, and an electric current is applied to force the molecules through the gel. The molecules migrate from the negative electrode to the positive electrode based on their charge and size, with smaller molecules moving faster. After separation, the molecules can be visualized using dyes specific to the molecule type.