Immunology 02

Question 1

Colonal selection

Answer 1

antigen-driven cloning of lymphocytes is a vital step in the adaptive immune response against infection

Question 2

Once inside the body, an antigen encounters:

Answer 2

a diverse pool of B and T lymphocytes, however one particular antigen interacts only with the tiny fraction of lymphocytes bearing receptors specific to that antigen

Question 3

Once the lymphocytes receptors are activated by the antigen

Answer 3

these few selected cells proliferate, forming a clone- a genetically identical population- of thousands of cells all specific for the stimulating antigen

Question 4

Steps of Colonal Selection

Answer 4

1. The row of three cels at the top represents the broad range of B cells in a lymph node- B cells with different antigen receptors