What is the main problem that results in autoimmune diseases?

A. Macrophages are not working.
B. The body fails to distinguish between self and nonself antigens.
C. Helper T cells are not functioning correctly.
D. There is too much IgD in the blood.
E. The memory T cells fail to respond for subsequent exposures to antigen.


Answer: B

Biology & Microbiology

You might also like to view...

Dried pigeon droppings are a potential source of infection with ________.

A. Cryptococcus neoformans B. Coccidioides immitis C. Malassezia furfur D. Blastomyces dermatitidis

Biology & Microbiology

Which part of the human brain is responsible for fine-tuning movements to maintain balance?

1.Cerebrum 2.Cerebellum 3.Hypothalamus 4.Medulla oblongata

Biology & Microbiology

Suppose that you have been able to partially sequence a significant number of cDNA clones from an as yet unsequenced insect genome. These clones are useful as what sequences that can help annotation?

What will be an ideal response?

Biology & Microbiology

Which of the following is not a fat-soluble vitamin?

a. vitamin A b. B-complex vitamins c. vitamin D d. vitamin K e. vitamin E

Biology & Microbiology