Question

question 2 (1 point)
the substance that allows for the current to be carried and also maintains a relatively constant ph.
a) agarose
b) methylene blue
c) loading dye
d) gel buffer

Explanation:

Gel buffer is a solution that allows current to flow and maintains a relatively constant pH. Agarose is a polysaccharide used to make the gel matrix. Methylene blue is a dye used for staining. Loading dye is used to track the progress of electrophoresis. The key function described (allowing current and maintaining pH) matches gel buffer.

Answer:

d) gel buffer