Assertion : An organ transplant patient if not provided with cyclosporin A may reject the transplanted organ.
Reason : Cycosporin A inhibits activation of T-cells and interferes with destruction of non-self cells.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false

Answer

A

Explanation

Cyclosporin A is cyclic oligipeptide obtained through fermentative activity of fungus Trichoderma polysporum. It has immunosuppressive properties and inhibits activation of T-cells. T cells of immune system mainly function to kill non-self cells. Because cyclosporin A inhibits T cell function, it caused immunosuppression and chances of rejection of transplanted organ are reduced. Thus, organ transplant patients are provided with cyclosporin A.