Which of the Following Statements Are Fundamental to the Clonal

question 12

Multiple Choice

Which of the following statements are fundamental to the clonal selection theory of how the adaptive immune system functions?
I.Each lymphocyte has a unique membrane receptor that recognizes one antigen.
II.When the lymphocyte binds an antigen, it is activated and begins dividing to form many identical copies of itself.
III.Cloned lymphocytes have slight differences and are selected by the spleen for removal if they do not bind an antigen.
IV.Cloned cells descend from an activated lymphocyte and persist even after the pathogen is eliminated.

• A) only I and III
• B) only II and IV
• C) only I, II, and IV
• D) only II, III, and IV

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Definitions:

Lupus

An autoimmune disease where the body's immune system mistakenly attacks healthy tissue, affecting skin, joints, kidneys, brain, and other organs.

Stress Hormones

Chemicals, like cortisol, released into the body in response to stress, affecting various bodily functions.

Bacterial and Viral Infections

Diseases caused by the invasion of the body by bacteria and viruses, leading to illness and requiring different methods of treatment.

Inflammation

A biological response to harmful stimuli, marked by redness, heat, swelling, and pain, which is part of the body's immune response.