Which of the Following Is Not True of the Antigen-Independent

question 23

Multiple Choice

Which of the following is not true of the antigen-independent period of lymphocyte development?

• A)Many lymphocytes with different specificities are formed.
• B)Random genetic rearrangements occur to produce different surface protein receptors.
• C)Lymphocytes with specificity for self are destroyed.
• D)Lymphocytes form from stem cells in the bone marrow.
• E)Mature lymphocytes populate lymphatic organs and encounter antigens.

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Definitions:

Unconditioned Stimulus

A stimulus that naturally and automatically triggers a response without any need for learning.

Primary Reinforcer

An innately reinforcing stimulus, such as one that satisfies a biological need.

Positive Punishers

Stimuli that, when introduced after a behavior, decrease the likelihood of that behavior occurring in the future.

Generalization

The process of applying the information or conclusions from specific instances to broader contexts or situations.