RRB Group D 8-Dec-2013 Shift 1 Solved Paper

Serum is defined as a clear and pale yellow liquid that can be separated from the coagulated blood. It is obtained after the removal of the corpuscles from blood. Serum differs from plasma,the liquid portion of normal unclotted blood, containing the red blood cells and white blood cells and platelets. It is the clot that makes the difference between serum and plasma