Four proteins, each containing a single polypeptide, are separated by SDS-PAGE: human cytochrome c (MW 13,000), human serum albumin (MW 67,000), bovine myoglobin (MW 16,890), and human apolipoprotein B (MW 513,000). Which one would show up as the band at the bottom of the gel? Select one: a. cytochrome cb. […]