Select the true statements about sds‑page, a method of separating proteins. assume that sds‑page is performed under reducing conditions. proteins are visualized using a dye that binds to the gel matrix, but not to proteins. sodium dodecyl sulfate binds proteins, resulting in protein‑sds complexes that are similar in size. proteins are separated in a polyacrylamide gel matrix. smaller proteins migrate faster through the polyacrylamide gel. a protein binds roughly 1.4 times its mass of sds, resulting in a large overall negative charge. protein‑sds complexes migrate toward the negative electrode.