Which Statement Is Incorrect

question 221

Multiple Choice

Which statement is incorrect?

• A)Cytotoxic T cells release chemicals that destroy targeted cells.
• B)Helper T cells enhance the activity of other T cells and B cells.
• C)Regulator T cells are believed to play an important role in tolerance to self-antigens.
• D)Helper T cells can combine only with host cells bearing both foreign antigen and class I MHC-encoded self-antigens on their surface.
• E)The majority of T cells are helper T cells.

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Definitions:

Nonrenewable Resources

Nonrenewable resources are natural resources that cannot be replenished or replaced at the same rate at which they are consumed, such as oil, coal, and natural gas.

Placebo Effect

A beneficial effect produced by a placebo drug or treatment, which cannot be attributed to the properties of the placebo itself, and must therefore be due to the patient's belief in that treatment.

Subjective Perceptions

Individual interpretations or views of reality, influenced by personal feelings, tastes, or opinions.

Objective Measures

Quantifiable data used to evaluate conditions or performance, free from personal subjective judgments.