15. After isolating an antibody from cell culture medium, you intend to assess its purity and conformation using SDS-PAGE and
Native-PAGE analyses. Suppose the antibody is 99% pure. Please illustrate the expected outcomes on SDS-PAGE and NativePAGE for this antibody, which consists of two heavy chains and two light chains with molecular weights of 50 kDa and 25 kDa,
respectively. (4%)