Which two of the following statements about the separation of molecules are true? A .Separation of Protein using "Native" or "non-denaturing" gel electrophoresis is on the basis of sizes B.Separation of Protein using "Native" or "non-denaturing" gel electrophoresis is on the basis of the net charges C.Separation of DNA molecules using gel electrophoresis is on the basis of the net charges D.Separation of DNA molecules using gel electrophoresis is on the basis of sizes