Question

29. T-cell independent antigens can a. stimulate B cells to multiply and produce antibodies b. induce Te cells to function c. restrict antibody formation activate macrophages activate Th cells 30. Mutation of DNA that produces an altered ribosome is an example of what type of bacterial resistance mechanism? a. alteration of a metabolic pathway b. alteration of an enzyme c. development of enzymes d. alteration of target & d 31. Which one of the following is not an attribute of adaptive immunity? a. recognition of self versus nonself b. recognition of Csb c. diversity d. memory e. specificity 32. Ethambutol inhibits incorporation of mycolic acid, therefore it is effective against: a. gram-positive bacteria b. gram-negative bacteria c. mycobacteria d. fungi e. viruses 33. Assume you mix red blood cells, antibodies against red blood cells, and complement in a test tube. What would you expect to see (using your eyes only)? ng of the red blood cells opsonization c. lysis of your red blood cells d. phagocytosis e. rolling of the your red blood cells 34. The following events occur during adaptive immunity, which is the second event? helper cells release cytokines b. B cells release antibodies C. Antigen combines with MHC Ⅱ d. APC digests antigen e. APC releases cytokines

Answer 1

29. option A is correct as T-cell independent antigen stimulate B cell without the help of Th cells

30. Option D  is corrtect as the maturation of DNA that produces th altered ribosome is example of alteration of targets type of bacterial resistance.

31. Option A is not the attribute of adaptive immunity

32. Option C is correct As Ethambutal is antituberculosis medication which is effcetive against the mycolic acid

33. Option C is correct lysis of RBC in the form of turbidity is ssen by eyes

34.Option A ias correct