What Is the Source of the Extra Chromosome 21 in an Individual

question 37

Multiple Choice

What is the source of the extra chromosome 21 in an individual with Down syndrome?

• A) nondisjunction in the mother only
• B) nondisjunction in the father only
• C) duplication of the chromosome
• D) nondisjunction or translocation in either parent
• E) It is impossible to detect with current technology.

---

Definitions:

Question Marks

Business units or products with low market share in high-growth markets, requiring decisions about investment to improve position or divestiture.

Grow Or Retrench

A strategic decision companies must make between expanding their operations or reducing their scale to focus on core competencies.

Upside Potential

The potential or possibility for an investment, project, or venture to increase in value or profitability.

Stars

High-growth and high-market share items or businesses that require large investments to maintain their leadership but generate substantial cash.