Which of the Following Statements Is True of Down's Syndrome

question 60

Multiple Choice

Which of the following statements is true of Down's syndrome?

• A) Down's syndrome is usually caused by a defect in the sex chromosomes of an individual.
• B) The symptoms of Down's syndrome are similar to those of sickle-cell anemia.
• C) Down's syndrome is caused by a sexually transmitted infection (STI) during conception.
• D) The probability of having a child with Down's syndrome increases with the age of the parents.

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Definitions:

Unemployment

The situation of being without a job, while actively looking for one and willing to work.

Short-Run Phillips

A concept that shows an inverse relationship between the rate of unemployment and the rate of inflation in an economy over a short period of time.

Inflation Rate

The percentage increase in the price level of goods and services in an economy over a period of time.

Unemployment Rate

The percentage of the labor force that is unemployed.