Experiments That First Identified a Role for the MHC Gene

question 36

Multiple Choice

Experiments that first identified a role for the MHC gene locus in tissue identification were successful in mice because:

• A)mice can yield large litters,and great numbers of offspring were needed for genetic analyses.
• B)mice have very small genomes,making it easier to link genetic changes to functional changes.
• C)mice with identical genetic backgrounds were able to accept tissue transplants,but other strains of mice rejected the tissue.
• D)mice without intact immune systems are routinely used to study the effects of MHC molecules.

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Definitions:

Heredity And Environment

The two principal factors that influence an individual's physical and psychological traits: genetic inheritance and external conditions or surroundings.

Behaviour Modification

A technique or intervention designed to change harmful or undesirable behaviors using principles of learning theory.

Operant Principles

The processes by which behaviors are strengthened or weakened over time through the consequences they produce, including reinforcement and punishment.

Insight Training

A therapeutic technique aimed at increasing an individual's awareness of underlying motives and defenses.