Question

B cells follow which of the following chemotactic signals to migrate to the cortical regions of secondary lymphoid tissue?

A. CCL19
B. CXCL13
C. CCL21
D. Both A and Cwztrst
E. None of the above

Answer 1

B cells follow both CCL19 and CCL21 chemotactic signals to migrate to the cortical regions of secondary lymphoid tissue.

Step-by-step explanation:

B cells follow both A and C chemotactic signals to migrate to the cortical regions of secondary lymphoid tissue.

The chemotactic signals that attract B cells are CCL19 and CCL21.

These chemokines are produced by stromal cells and attract B cells through a process called chemotaxis.

Once the B cells reach the cortical regions, they interact with other immune cells to initiate an immune response.