Which of the Following Is FALSE About Down's Syndrome

question 61

Multiple Choice

Which of the following is FALSE about Down's syndrome?

• A) Many people with mild mental retardation have Down's syndrome.
• B) Down's syndrome occurs in fewer than one in every 1,000 births.
• C) The chances of having a Down's syndrome child increase among women who are over 35 when they become pregnant.
• D) Down's syndrome is caused by a problem in the twenty-first pair of chromosomes.

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Definitions:

Economic Profits

Profits exceeding the opportunity costs of a company; considered an indicator of efficiency and entrepreneurship.

Average Total Cost

The total cost of production divided by the total quantity of goods produced, representing the cost per unit.

Average Variable Cost

The cost of labor and materials divided by the quantity of output produced, reflecting costs that change with the level of output.

Average Total Cost

The total cost of production divided by the quantity of output produced; it includes both fixed and variable costs.