An experiment was carried out to study the immune response to dust mite allergen in two strains of mice viz BALB/c(b) and nude(n).The mice were administerd the immunogen on days 0 and 8 and allergen specific circulatory ab were monitored in two groups of mice on day 7 & 18

Q. which of the following classes of ab would be detected in these stains of mice on day 7?

(a) IgM(b) IgM(n)  (b) IgG(b) IgM(n)

(c) IgA(b) IgM(n)   (d)IgE(b) IgM(n)

Q. which of the following classes of ab would be detected in these stains of mice on day 7?

(a) IgG(b) IgM(n)  (b) IgE(b) IgE(n)

(c) IgE(b) IgE(n)   (d)IgE(b) IgG(n)