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 C
E. None of the above
B
You might also like to view...
An immunogen is a(n)
a. compound that is capable of eliciting an immune response in a host b. antigen that is from other members of the same species as the host c. restricted portion of a molecule involved in the actual binding with the combining site of a particular antibody d. small compound that, although able to combine with elements of the immune system such as antibodies, cannot stimulate an immune response unless they are linked to a much larger immunogenic molecule called a carrier
The medical language definition of the word cardiomegaly is ________
A) "heart attack" B) "enlargement (of the) heart" C) "irregular beat (of the) heart" D) "heart failure"
Ulcers are more of a psychological problem than a biological problem.
Answer the following statement true (T) or false (F)
The word element that means cell is
A. -genesis. B. -blast. C. -clast. D. -cyte. E. osteo-.