Textbook Question
Which of the following is not involved in the activation of a B cell?
a. Antigen
b. Helper T cell
c. Cytokine
d. Cytotoxic T cell
1004
views
1
rank
21. The Immune System
Clonal Selection
Multiple Choice
Which of the following is NOT an organ where clonal selection occurs?
A
Spleen.
B
Lymph nodes.
C
Bone marrow.
D
Mucosa associated lymphoid tissue.
Verified step by step guidance1
Understand the concept of clonal selection: Clonal selection is a process in the immune system where specific lymphocytes are selected to proliferate and form clones in response to an antigen.
Identify the organs involved in clonal selection: Clonal selection primarily occurs in secondary lymphoid organs where lymphocytes encounter antigens.
Recognize the secondary lymphoid organs: The spleen, lymph nodes, and mucosa-associated lymphoid tissue (MALT) are secondary lymphoid organs where clonal selection typically occurs.
Consider the role of bone marrow: Bone marrow is primarily involved in the production and maturation of lymphocytes, not in clonal selection, which occurs after lymphocytes have matured and migrated to secondary lymphoid organs.
Conclude which organ is not involved in clonal selection: Based on the understanding that clonal selection occurs in secondary lymphoid organs, identify bone marrow as the organ not involved in this process.
Related Videos
Related Practice
