John Was Diagnosed as Having Selective Mutism

question 75

Multiple Choice

John was diagnosed as having selective mutism.This means that he

• A)has a communication disorder which makes him unable to talk.
• B)refuses to speak in unfamiliar social circumstances.
• C)communicates to his parents and other family members with gestures only.
• D)has created his own language;this disorder is common in twins.

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Definitions:

Dizygotic

Referring to twins that are the result of two separate eggs fertilized by two separate sperm, resulting in genetically distinct siblings born at the same time.

Monozygotic

Another term for identical twins, indicating they originated from a single zygote.

Chromosomes

Structures within cells that contain the organism's genetic material (DNA) and are responsible for determining the characteristics of an organism.

Sperm Cells

Male reproductive cells vital for sexual reproduction, responsible for fertilizing the female ovum.