Given the 2D-PAGE Gel Below, Which One of the Following

Multiple Choice

Given the 2D-PAGE gel below, which one of the following conclusions is true? [Figure after G. Gibson and S. Muse. 2004. A Primer of Genome Science, 2e. Sinauer Associates, Inc. p. 274, Fig. 5.4.]

A) Cathepsin B has a smaller molecular mass than actin and approximately the same charge as actin.
B) Proteosome B chain has a higher charge and a larger molecular mass than actin.
C) ER60 has a smaller molecular mass than cathepsin heavy chain and approximately the same charge as cathepsin heavy chain.
D) Calreticulin has a lower charge than glutathione-S-transferase and a smaller molecular mass than glutathione-S-transferase.
E) ATP synthase D chain has a higher charge than transthyretin and approximately the same molecular mass as transthyretin.