Which of the following immunoglobulins does constitute the largest percentage in human milk?
1. Ig M
2. Ig A
3. Ig G
4. Ig D

Consider the following four statements (a-d) regarding kidney transplants and select the two correct ones out of these.
(a) Even if a kidney transplant is proper the recipient may need to take immuno-suppressants for a long time
(b) The cell-mediated immune response is responsible for the graft rejection
(c) The B- lymphocytes are responsible for rejection of the graft
(d) The acceptance or rejection of a kidney transplant depends on specific interferons
The two correct statements are
1. (c) and (d)
2. (a) and (c)
3. (a) and (b)
4. (b) and (c)

Transplantation of tissues / organs fails often due to non-acceptance by the patient's body. Which type of immune –response is responsible for such rejection
1. Autoimmune response
2. Cell- mediated immune response
3. Hormonal immune response
4. Physiological immune response