Multiple choice

Germinal centers are sites within secondary lymphoid organs where mature B lymphocytes are formed. During the bacterial infection of an eye the tingible bodies inside germinal center macrophages are

  1. DNA fragments

  2. Phagocytosed foreign antigen

  3. A sign of macrophage apoptosis

  4. Bacterial cell wall components are resistant to degradation

  5. VLA molecules

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

There is very extensive apoptotic cell death amongst the light zone centrocytes and the resultant DNA fragments are visible as 'tingible bodies' within the macrophages which have phagocytosed the apoptotic lymphocytes.