The variable region of an antibody

  1. binds to phagocytes
  2. is the same in all antibodies
  3. is a disulfide bond
  4. forms the antigen-binding site
Answer

D) forms the antigen-binding site

Variable regions are specific. AS & A Level Biology · Topic 11 Immunity · 11.2 Antibodies and vaccination

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