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The class of immunoglobulin to respond to the fist exposure of an antigen is immunoglobulin class M (IgM). While Immunoglobulin G (IgG) would predominate on the second exposure.

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What is the first antibody made in response to an antigen?

IgM is the antibody first secreted during primary response


What is the effect of not including the antigen or the primary antibody in the ELISA reaction?

Not including the antigen will prevent the primary antibody from binding to it which will disrupt the results of the ELISA. Not including the primary antibody will prevent the secondary antibody from binding it, which will again negatively affect the results of the ELISA. All components are necessary to get an accurate ELISA.


What are the differences between sandwich ELISA and indirect ELISA?

Sandwich ELISA directly detects the antigen using two antibodies, while indirect ELISA detects the antigen using a primary antibody and a secondary antibody that binds to the primary antibody.


What are the differences between indirect ELISA and sandwich ELISA?

Indirect ELISA and sandwich ELISA are two types of enzyme-linked immunosorbent assays used in laboratory testing. In indirect ELISA, the antigen is immobilized on the surface, and a primary antibody binds to the antigen. Then, a secondary antibody linked to an enzyme is added to detect the primary antibody. In sandwich ELISA, the antigen is captured by a primary antibody that is immobilized on the surface. A second antibody linked to an enzyme is then added to bind to a different epitope on the antigen, forming a "sandwich" complex. The main difference between the two methods is the way in which the antibodies are used to detect the antigen. In indirect ELISA, the primary antibody is detected by a secondary antibody, while in sandwich ELISA, the antigen is "sandwiched" between two antibodies for detection.


What distinguishes the secondary immune response from the primary immune response?

the secondary immune response is faster and stronger than the first. the primary response also takes a few days to react with the antigen whereas the secondary immune response reacts faster to an antigen.


What is a primary response?

A primary response is the initial reaction of the immune system to an antigen or pathogen it encounters for the first time. It involves the activation and rapid proliferation of specific immune cells, such as T and B cells, to eliminate the foreign invader. This response helps establish immunological memory for future encounters with the same antigen.


What is primary and secondary antibody?

primary antibody is what binds to the specific gene that you are interested in looking at; i.e. primary is rabbit-antibody bind to its proper epitope. and this is usually unconjugated with no label. the secondary antibody is conjugated with some type of label, i.e., you will be able to see if your gene is being expressed. i.e., if primary from a rabbit, want goat-anti-rabbit, this way it can bind to the primary antibody.


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 a serology lab?

Serology, the study of serum, is the science that studies antigen-antibody or immunologic reaction of the body,using a serum specimen. A primary role of the serological lab is to diagnose infectious diseases by observing the presence of an immune antibody in the pt.which resulted from inf. or entry of the pathogen (antigen) into the body.


What is the single most important event in establishing a primary immune response?

The recognition of an antigen by a naive T or B cell is the most important event in establishing a primary immune response. This recognition leads to activation and proliferation of these cells, resulting in the generation of specific immune responses to combat the antigen.


What class of antibody is produced in the primary immune response?

The class of immunoglobulin that is produced in the primary immune response is Immmunoglobulin M (IgM). On secondary exposure, the class that predominates would be Immunoglobulin G (IgG).


Would lack of memory B cells for a particular antigen impact the primary or secondary humoral response?

Lack of memory B cells for a specific antigen would primarily impact the secondary humoral response. Memory B cells play a critical role in mounting a more rapid and robust immune response upon re-exposure to the antigen during a secondary response.