WGU D664 Learners and Learning Science Objective Assessment OA LATEST 2025 UPDATE WITH COMPLETE QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS 100%GUARANTEED PASS!!! Explain why IgM must be a pentamer to be effective. - <<answer>>IgM does n

WGU D664 Learners and Learning Science Objective Assessment OA
LATEST 2025 UPDATE WITH COMPLETE QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS 100%GUARANTEED PASS!!!

Explain why IgM must be a pentamer to be effective. - <<answer>>IgM does not go through somatic
hypermutation, so the affinity for antibody binding is low but it is in a pentamer shape. The pentamer
shape has 10 potential contact sites which have a high affinity to the antigen when summed, "Velcro
effect." IgM is also the antibody created before somatic recombination occurs.



List the 5 main isotypes (classes; NOT to subtype level) of antibody - <<answer>>IgA, IgM, IgG, IgE, IgD



the 3 antibodies that together compose 99% of all antibody in blood/body fluids: - <<answer>>IgG, IgA,
and IgM



the biggest (molecular weight) antibody - <<answer>>IgM



the most abundant antibody in serum and body fluids - <<answer>>IgG



Antibody that exists as a pentamer - <<answer>>IgM



Antibody that can cross the placenta - <<answer>>IgG



antibody that is in the highest concentration in mucus - <<answer>>IgA