The Most Frequently Occurring Form of Down Syndrome Results from

question 61

Multiple Choice

The most frequently occurring form of Down syndrome results from

• A) an extra broken piece of a twenty-first chromosome attaching to another chromosome.
• B) an error during the early stages of mitosis.
• C) a failure of the twenty-first pair of chromosomes to separate during meiosis.
• D) the inheritance of an extra X chromosome.

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Definitions:

Competitive Labor Market

A market where there are many employers and job seekers, and the wages are determined by supply and demand for labor.

Marginal Revenue Product

The additional revenue a firm generates by employing one more unit of input, like labor, in the production of goods or services.

Marginal Product

The additional output that is produced by adding one more unit of a particular input while keeping other inputs constant.

Perfect Competitor

A theoretical market structure where many firms sell identical products, entry and exit are easy, and no single buyer or seller can influence market price.