Which antibody may help activate helper T cells?
a. IgA
b. IgD
c. IgE
d. IgG
e. IgM
B
Biology & Microbiology
You might also like to view...
The damage caused by parasites may be due to
A. competition for nutrients. B. the physical blocking of organs. C. the direct digestion of host tissue. D. the host's immune response. E. All of the choices are correct.
Biology & Microbiology
The constant region of a light chain is indicated by number
a. 1. b. 2. c. 3. d. 4. e. 5.
Biology & Microbiology
The 9:6:1 ratio seen in the dihybrid cross of summer squash indicates what genetic relationship between the two genes controlling fruit shape?
A) recessive interaction B) dominant interaction C) recessive epistasis D) dominant epistasis E) dominant suppression
Biology & Microbiology
Acetylcholine is an amino acid.
a. true b. false
Biology & Microbiology