SCID Is Defined by a Lack of Functional B and T

question 65

Multiple Choice

SCID is defined by a lack of functional B and T cells which eliminates protection by humoral and cell-mediated immunity. Which of the following is true?

• A) A genetic defect disrupts the development of the lymphocytic cell lines.
• B) A genetic mutation renders the individual incapable of removing a toxic DNA metabolite from lymphocytes, which ultimately destroys them.
• C) Genes coding for B and T cell receptors are mutated so the cells are incapable of binding antigens.
• D) Genes that code for interleukin receptors are mutated so the individual's B and T cells do not receive the activation signals, rendering them useless.
• E) All of the choices describe cases of SCID.

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Definitions:

Freud's Techniques

Psychoanalytic methods developed by Sigmund Freud, including free association, dream analysis, and the exploration of the unconscious, aimed at treating mental disorders.

Psychodynamic Therapies

A group of therapies that focus on unconscious processes as they are manifested in a person's present behavior, aiming to reveal the inner conflicts affecting the psyche.

Behavior Therapies

A type of psychotherapy that focuses on modifying problematic behaviors through reinforcement strategies and conditioning.

Social Interaction

The process through which individuals act and react in relation to others, fostering communication and relationship development.