Which of the Following Is True of Down Syndrome (DS)

question 97

Multiple Choice

Which of the following is true of Down syndrome (DS) ?

• A) The brains of DS people are approximately 10 percent lighter than those of normal people.
• B) A DS person may be exceptionally talented in a particular area in spite of general mental retardation.
• C) People with DS have no distinguishing physical characteristics.
• D) People with DS often fail to learn to talk.
• E) The incidence of DS is 1 in 10,000 in the United States.

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Definitions:

Double Coincidence

A situation in a barter system where two parties each hold an item the other wants, necessitating an exact match to complete an exchange.

Trade

The exchange of goods, services, or both between countries or individuals, allowing for the specialization and efficiency benefits.

Relative Values

A measure of the worth or importance of one thing in comparison to another, often used in economics to compare the value of different commodities or services.

Barter System

The barter system is a method of exchange where goods or services are traded directly for other goods or services without the use of currency.