0
What happence when an antigen on a red blood cell comes in contact with the antibody designed to seek it out?
Wiki User
∙ 9y ago
The antibody is killed off, and the antigen spreads
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
Why can type O blood be donated to anyone?
It contains neither A antigen nor B antigen. their blood can be given to individuals of any other blood group red cells do not carry either A or B antigen and hence they do not react with their corresponding antibodies. Remember that an immune respond can only be trigger when the antigen is present in the blood. In another word the blood originally have no any antibody but upon antigen contact it will trigger the immune respond thus antibody is produced and agglutination of blood occur. for rhesus factor there are memory cell so the antibody is still present. That is why when an O blood group without any antigen and antibody (it have both antibody but it is not create yet as there is nothing to trigger its immune respond) can donate to AB group which has no antibody (which mean it will not be trigger by any blood group) but have both antigen (remember that all donated blood have no antibody as there is no immune respond to trigger it thus the AB blood with both antigen is fine; except rhesus factor if it have memory cell)
What is the basic principle of the antigen-antibody reaction?
-the principle of antigen-antibody reaction is a process of the immune system in which immunoglobulin-coated B cells recognize a specific antigen and stimulate antibody production. T cells also play an essential role in the reaction. An antigen-antibody reaction begins with the binding of antigens to antibodies to form antigen-antibody complexes. These complexes may render toxic antigens harmless (neutralization), agglutinize antigens on the surface of microorganisms, or activate the complement system by exposing the complement binding sites on antibodies. Certain complement protein molecules immediately bind to these sites and trigger the activity of the other complement protein molecules, which cause antigen-bearing cells to lyse. Antigen-antibody reactions may start immediately with antigen contact or as much as 48 hours later. They normally produce immunity but may also be responsible for allergy, autoimmunity, and fetomaternal hematologic incompatibility. In the immediate allergic response, the antigen-antibody reaction activates certain enzymes and causes an imbalance between those enzymes and their inhibitors
Why the sperms are not taken as antigen in female reproductive tract?
Sperm is indeed considered a foreign structure when in the female reproductive system. However, it is not considered an antigen because it does not come into contact with the blood, therefore the antibody process does not happen.
What is RH typing?
Rh is an antigen. If you have the antigen, your blood type is A+, B+, AB+, or O+. If you don't have the antigen, your blood type is A-, B-, AB-, or O-. People WITH the Rh antigen, can receive from/give to people with Rh+ or Rh-. People WITHOUT the Rh antigen, can ONLY receive from/give to people with Rh- blood. (meaning people without the antigen) If Rh- and Rh+ blood comes in contact, the Rh- will produce antibodies towards Rh+, and at the second contact with the blood, will cause agglutination.
What are the 2 main parts of the immune system?
Primary versus Secondary Immune ResponseThe primary immune response occurs the first time that the immune system comes in contact with the antigen. During this time the immune system has to learn to recognize antigen and how to make antibody against it and eventually gain immunological memory. This primary response takes time (about two weeks) and during this time the person experiences signs of illness. IgM antibodies are the hallmark of a new infection because they are the first antibodies made when a person is exposed to an antigen for the first time. After the body learns to make IgM antibodies, it will start making IgG antibodies to the antigen.The secondary immune response occurs the second time (3rd, 4th, etc.) the person is exposed to the same antigen. At this point immunological memory has been established and the immune system can start making antibodies immediately. The antigen usually is killed within minutes and the person is not aware that he/she was attacked. The antibodies in this response are IgG and IgA or (in the case of allergy IgE).
What is an e antibody?
IgE is a monomeric antibody that accounts for only 0.002 % of the total serum antibodies. Almost all IgE is bound to tissue cells, especially mast cells and eosinophils in various parts of the body. Contact of IgE with antigen leads to release of a set of signal molecules from the mast cells, which effectively recruits various agents of the immune response to fight the infection. IgE and MALT serve to detect penetrating pathogens and amplify the immune response in an area leading to the repulsion of the invader. Antigen reactions with IgE are also responsible for atopic allergic reactions (e.g., hives, asthma, hay fever etc.)
How do white blood cells recognize particular types of pathogen?
Lymphocytes make a different antibody for each pathogens. They have this 'memory' of a pathogen they had previously come in contact with. The person is then said to be immune to that disease, as the lymphocytes know immediately which antibody to make.
How do you conduct the antibody mRNA sequencing?
My friend told me I can contact at info@creative-biolabs.com to know more.
What does Rh stands for?
Rh is an antigen. If you have the antigen, your blood type is A+, B+, AB+, or O+. If you don't have the antigen, your blood type is A-, B-, AB-, or O-. People WITH the Rh antigen, can receive from/give to people with Rh+ or Rh-. People WITHOUT the Rh antigen, can ONLY receive from/give to people with Rh- blood. (meaning people without the antigen) If Rh- and Rh+ blood comes in contact, the Rh- will produce antibodies towards Rh+, and at the second contact with the blood, will cause agglutination.
What is the Rh blood type?
People with different blood types have proteins specific to that blood type on the surfaces of their red blood cells (RBCs). Rh factor "Rhesus factor" is type of antigens on the human blood cell. The presence of this antigen in human blood given (+) besides it's blood type. The absence of this antigen is given (-) besides blood type. For example A- or A+.
What is complement determining receptors?
Complementarity determining regions (CDR), are antibody or T cell receptor regions where the molecule complements an antigen's conformation. Thus, CDRs determine the molecule's specificity and make contact with a specific antigen. CDR1 and CDR2 are found in the variable (V) domain, and CDR3 includes some of V, all of diverse (D) (heavy chains only) and joint (J), and some of the constant (C) domains. CDR3 is the most variable.A hypervariable domain, known for its unusually high level of sequence variation, exists as a flexible loop in CDR1. The hypervariable loops from each domain are brought together to create the antigen-binding site and thus determines the molecule's specificity.
Is football designed to be a non-contact sport?
Absolutely not.
