Which of the following statements is TRUE?Autoimmunity is acquired only and cannot be inherited.Autoimmune diseases are mediated by auto-antibodies only.Autoimmunity is an impairment of the immune system where the immune system attacks the body’s infected cells.Autoimmunity is caused by specific adaptive immune responses against self-antigens.
Question
Which of the following statements is TRUE?Autoimmunity is acquired only and cannot be inherited.Autoimmune diseases are mediated by auto-antibodies only.Autoimmunity is an impairment of the immune system where the immune system attacks the body’s infected cells.Autoimmunity is caused by specific adaptive immune responses against self-antigens.
Solution
The statement "Autoimmunity is caused by specific adaptive immune responses against self-antigens." is TRUE.
Autoimmunity is indeed a condition where the immune system mistakenly attacks the body's own cells. This happens when the immune system fails to distinguish between self (body's own cells) and non-self (foreign cells such as bacteria, viruses). The immune responses against self-antigens are specific and are part of the adaptive immune system.
The other statements are not entirely true. Autoimmunity can be both inherited and acquired. Autoimmune diseases are not mediated by auto-antibodies only, T cells also play a significant role. And, the immune system in autoimmunity attacks the body’s own cells, not just the infected ones.
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