Hemagglutinin (Anti A and Anti B) are which type of antibodies -: (A) Ig G, (B) Ig M, (C) Ig A, (D) IgE
Answer is B. IgM is a heavy molecule. - IgM molecules are polymers of five four-peptide subunits. the earliest immunoglobulin synthesized by the fetus. - the isohemagglutinins ( anti- A, anti - B ) and many other natural antibodies to microorganisms are usually IgM. ReReference:nathanarayan & paniker's 9th edition, pg no: 98 <\p>