The Major Histocompatibility Complex Is Important in a T-Cell's Ability

question 46

Multiple Choice

The major histocompatibility complex is important in a T-cell's ability to:

• A)recognize specific parasites.
• B)recognize specific bacteria.
• C)recognize specific viruses.
• D)recognize self from nonself.

Recognize the influence of environmental factors on phenotypic traits.

Identify sources of phenotypic variation within populations.

Describe the concept of a phenotype and what does not constitute a phenotype.

Explain the concept of polyphenism and how environmental cues can trigger phenotypic changes.

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Definitions:

Extracellular Antigens

Antigens that exist outside the cells, which can trigger an immune response in the body.

Antibody-Mediated Immunity

A form of immunity that involves the production of antibodies by B cells in response to antigens, playing a crucial role in targeting and neutralizing foreign invaders.

Cell-Mediated Immunity

The aspect of the immune response that involves the activation of certain immune cells to fight off pathogens, rather than the production of antibodies.

B Cell

A type of lymphocyte involved in the immune response by producing antibodies to neutralize pathogenic threats.