The Term Tolerance Refers To

question 24

Multiple Choice

The term tolerance refers to:

• A) surveillance and destruction of new cancer cells by the immune system.
• B) the ability of the immune system to ignore "self" cells.
• C) the ability of T and B lymphocytes to work together.
• D) the role of lymphoid tissue in the body defenses.

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Definitions:

Phenotype

Visible attributes or properties of an organism, shaped by the combination of the organism's genetic information and the influence of the environment.

Genotype

The genetic makeup of an organism, consisting of all the DNA and genes that dictate inherited characteristics.

Dominant Gene

A gene that expresses its phenotype even in the presence of its recessive form, thus determining the characteristic it controls.

Phenylketonuria (PKU)

A genetic disorder characterized by the body's inability to metabolize the amino acid phenylalanine, leading to brain and nerve damage if untreated.