If You Have an Identical Twin, You and Your Twin

question 9

Multiple Choice

If you have an identical twin, you and your twin are likely to have

• A) an identical number of B cells, helper T cells, and cytotoxic T cells
• B) identical major histocompatibility complex (MHC) proteins
• C) identical antigens with similar immunogenicity and reactivity
• D) identical antigen presenting cells (APCs)
• E) an identical number of effector and memory cells

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Definitions:

Social Situation

A scenario that involves interactions between individuals in a society or community setting.

Borderline Personality Disorder

A mental health condition marked by pervasive patterns of varying moods, self-image, and behavior, leading to impulsive actions and unstable relationships.

Self-mutilation

The act of intentionally harming oneself as a coping mechanism or to express emotional pain, without suicidal intent.

Projective Identification

A psychoanalytic term describing a process where an individual projects their feelings or thoughts onto another person, who then identifies with these projected attributes.