Question
Biology Question on human health and disease
Antigens are present
A
inside the cytoplasm
B
on nuclear membrane
C
inside the nucleus
D
on cell surface.
Answer
on cell surface.
Explanation
Solution
An antigen is any foreign substance like protein or polysaccaharide present on the external coating of pathogen, feathers, constituent of a vegetable, fruit, meat, drug, chemical, tissue or organ transplant which induces the immune system to produce antibodies.