b. Type II c. Type III d. Type IV 24. Hemolytic disease of the newborn Rhesus-negative mother carrying a Rh -positive (erythoblastosis fealis) is a disease where a fetus may develop antibodies against this factor during birth. Which type of hypersensitivity is this? a. Type I b. Type II c. Type III d. Type IV 25. Rheumatoid arthritis and systemic lupus are what kind of hy persensitivity eactions? a. Type I b. Type II c. Type III d. Type IV 26. It has been observed that a reduction in family size and improved sanitary condition have led to an increase in all-rgic conditions. The 'hygiene hypothesis suggests that a. The frequent use of antiseptic swipes will reduce allergies b. Living on a working farm will help reducing the development of atopic diseases c. Particular care must be taken during breast feeding in high-risk infants d. Living on a working farm will increase the development of atopic diseases 27. If you have an autoimmune disease, what happens with the immune system? a. Your immune cells die b. Antibodies from your immune system mistakenly attack tissues in the body c. Your immune system makes too many immune cells d. None of the above 28. Immunodeficiency disorders involve malfunction of a person s immune system. These disorders can result in infections that develop and recur more frequently, are more severe, and last longer than usual. Which of the following is NOT one of the main ways in which immunodeficiency disorders develop? a. From having a chronic and/or serious disorder, such as AIDS b. From using certain drugs c. From close contact with a person who has an immunodeficiency disorder d. From being present at birth and usually inherited 29. Which of the following is NOT a type of method of transplantation? a.Autografting b. Allografting c. Xenografting d. Phenografting 30. Which of the following is NOT a way of immune suppressing the recipient for transplantation? a. vaccination against the antigens on the transplanted tissue b. Inhibits the production and secretion of IL-2 c. Corticosteroids to inhibit proinflammatory cytokines d. Radiation and chemicals