An antibody:

  1. is a protein
  2. is also known as an immunoglobulin (Ig)
  3. helps in detecting antigens

   Which of the above is/are correct?

Answer: [D] 1, 2 & 3

An antibody is also known as an immunoglobulin (Ig) and is a Y-shaped protein produced mainly by plasma cells that is used by the immune system to identify and neutralize pathogens such as bacteria and viruses.

This question is a part of GKToday's Integrated IAS General Studies Module