Antibodies are made of

  1. carbohydrate only
  2. one polypeptide
  3. three chains in a triple helix
  4. two heavy and two light polypeptide chains
Answer

D) two heavy and two light polypeptide chains

Four chains joined by disulfide bonds. AS & A Level Biology · Topic 11 Immunity · 11.2 Antibodies and vaccination

Biology MCQ · More A Level Biology: Immunity MCQs · Practise