Delayed-type hypersensitivity skin tests are used to screen for:

A. humoral immunodeficiencies.
B. cell-mediated immunodeficiencies.
C. phagocyte immunodeficiencies.
D. complement deficiencies.

Ans: B. cell-mediated immunodeficiencies.

Biology & Microbiology

You might also like to view...

Each of the following is a substrate for glycolysis except

A) galactose. B) mannose. C) lactose. D) fructose. E) All are substrates for glycolysis.

View
Biology & Microbiology

Mutations in the TATA box increase the rate of transcription

__________________ Indicate whether the statement is true or false.

View
Biology & Microbiology

Which of the following can cross a biological membrane by simple diffusion?

a. Glucose b. Fatty acid c. Amino acid d. Protein

View
Biology & Microbiology

All amino acids, such as the four represented in the figure, contain __________.

a. a nitrogen-containing base and a pentose sugar
b. an amine group and a carboxyl group
c. phosphorous and nitrogen
d. an amine group and a fatty acid

View
Biology & Microbiology