Antigens are typically present on any cell, bacterium, or virus.
No, O blood does not have any antigens present.
Yes, AB blood has both A and B antigens present on the surface of red blood cells.
Yes, serum does contain antigens
Yes, A positive blood contains A antigens on the surface of the red blood cells. Additionally, the "positive" indicates the presence of the Rh factor, meaning the Rh antigen is also present. Therefore, A positive blood has both A and Rh antigens.
An antibody can typically bind to two antigens at once.
The blood type notation A Rh- indicates which antigens and antibodies are present in the blood. A indicates there are A antigens. Rh+ indicates there are Rh antigens. B antibodies. If there are A and Rh antigens but no B antigens, the antibodies in the blood plasma are B antibodies.
The immune system recognizes antigens present within infectious organisms/viral particles/tumor cells. These antigens are typically proteins, but can be complexed with lipids or carbohydrates. Nucleic acids can be targeted by the immune system, but they are not distinct enough to act as appropriate antigens.
Your blood type is determined by antibodies (both/either A and B), and Antigens present (both/either A and B) in your Red Blood Cells. O blood types have both A and B antibodies, and neither A or B antigens. If you are O+ it means you can give blood to anyone. If you are O- it means you can recieve any blood type.
False. In a healthy individual, the immune system typically does not produce antibodies against the antigens present on their own red blood cells (RBCs). If antibodies against self-antigens were produced, it could lead to autoimmune conditions, such as hemolytic anemia. The body generally has mechanisms to prevent this type of immune response.
gamma globulins
Self-antigens
Im guessing that the testing medium contains antigens which bind to a receptor only present on the drug in question, or a range of drugs with a range of antigens.