複選題

13. Gel electrophoresis is often used in separating nucleic aci acid or proteins. The following is the set up of an agarose gel. The '-" and *t" signs indicate the orientation of the clectrodes. The black solid rectangles are the wells for loading sampics. Which descriptions for the setting is/are CORRECT?
(A)Smaller DNA will move faster toward the end of the gel
(B) Larger DNA will move slower toward the end of the gel
(C) The DNA will move upward
(D) The higher the percentage of the gel, the slower the DNA will move
(E) RNA cannot be separated in the gel