To assist in completing this question, you may reference the animated technique video - gel electrophoresis (sds- page). a protein sample complex consists of two proteins, a smaller protein, x, and a larger protein, y. protein x is composed of two polypeptide chains linked by disulfide bonds. protein y is composed of three polypeptide chains linked by disulfide bonds. the complex is analyzed by native page, reducing sds-page and non-reducing sds-page. native page does not include sodium dodecyl sulfate, or sds. reducing sds-page uses both sds and a reducing agent in the buffer. non-reducing sds-page uses sds, but no reducing agent. match each gel pattern to an experimental method. the first lane in each gel is a molecular weight ladder. native page non-reducing sds-page reducing sds-page