Mic 412lec Jac: Fundamentals Of Immunology (Winter 24) Prof Amy Jacobs University: University At Buffalo Chapter 7 Quiz:

MIC 412LEC JAC: Fundamentals of Immunology (Winter 24) Professor Amy Jacobs University: University at Buffalo Chapter 7 Quiz: Attempt 1- Score 100% (Highest Score) Question 1 Which one of the following statements about primary and secondary antibody responses is NOT true? Question 1 options: Antibodies in primary responses generally have lower affinity for antigen than those produced in secondary responses. Secondary responses reach peak levels more quickly than primary responses. Primary responses require higher concentrations of antigen for initiation than secondary responses. Primary responses occur to all types of antigens, but secondary responses mostly occur only to protein antigens. Primary responses are characterized by IgG antibodies, whereas secondary responses are dominated by IgM antibodies. Answer The statement that is NOT true is: "Primary responses are characterized by IgG antibodies, whereas secondary responses are dominated by IgM antibodies." This statement is incorrect. In primary responses, the initial antibody produced is usually IgM, and later, as the response progresses, class switching occurs, leading to the production of IgG antibodies. In secondary responses, there is a faster and more robust production of antibodies, with a greater proportion of IgG antibodies. Question 2 Which one of the following statements about humoral immune responses is