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Antibody molecules consists of how many polypeptide chains depending on which class of antibody is considered?
two
What class of antibody forms a large complex that can agglutinate cells?
IgM
Which class of antibody accounts for the bulk of circulating antibody?
IgG antibodies account for the bulk of circulating antibodies in the blood. They are the most abundant class of antibodies and play a crucial role in providing long-term immunity.
What is the class of antibody first secreted in response to a new antigen?
IgM is the class of antibody first secreted in response to a new antigen. It is produced during the initial immune response and helps to activate other components of the immune system.
What antibody class is most abundant in plasma is important in fixing complement and crosses the placenta to provide protection to a newborn?
The antibody class that is most abundant in plasma and is crucial for fixing complement is Immunoglobulin G (IgG). It is also the only antibody class that can cross the placenta, providing passive immunity to the newborn. This transfer of IgG helps protect the infant from infections during the early months of life.
What is antibody class switching?
Antibody class switching is a biological process in which B cells change the type of antibody they produce without altering the specificity for the antigen. This occurs after initial exposure to an antigen and involves the rearrangement of the constant region of the antibody gene, allowing the B cell to produce different classes of antibodies, such as IgM to IgG or IgA. Class switching enhances the immune response by enabling antibodies to perform various functions more effectively, tailored to different types of pathogens. This process is crucial for adaptive immunity, providing long-lasting protection against infections.
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).
Which class of antibody produced by a pregnant woman may attack RBCs in her fetus resulting in erythroblastosis fetalis?
IgG molecules.
In the primary response to an antigen the first class of antibody to be secreted is?
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.
How can a forensics lab determine from antibody class alone whether a sample is blood plasma or another body secretion such as semen or tears?
oh easy ......................
What is the Role of a variable region of an antibody molecule?
Each antibody has a variable region at the top of the arms of the Y-Shaped structure of the antibody. These variable regions each have a different sequence of amino acids and therefore a different structure. This means that only specific antigens can bind to the binding sites - only those with a complementary shape. The antigen fits into the binding site by induced fit. Once the antigen has bound to the antibody it forms a highly specific antigen-antibody complex. Therefore the role of the variable region is to produce a specific binding site for each type of antigen.
What type of the virus invades bacteria?
The general class of these viruses are called bacteriophages. " Bacteria eaters. "
