The following statements describe SDS-PAGE, a method to separate protein. Select the true statement. Assume SDS-PAGE is perfomed under reducing conditions.
a) sodium dodecly binds proteins, resulting in protein-SDS complex that are similar in size
b) smaller proteins migrate through the polycrylamide gel
c) protein-SDS complexes have simliar mass to charge ratio, therefore separating by size
d) protein-SDS complexes migrate toward the negative electrodes
e) proteins are separating in a polyacrylamide gel matrix
f) proteins are visualized using a dye that binds to the gel matrix, but not to proteins
