The Presence of Three Copies of the 21^st Chromosome Results

question 265

Multiple Choice

The presence of three copies of the 21^st chromosome results in:

• A) Tay Sachs disease.
• B) sickle cell anemia.
• C) Kleinfelter's syndrome.
• D) Down syndrome.

---

Definitions:

Rational Choice Theory

An economic theory that assumes individuals always make prudent and logical decisions that provide them with the highest amount of personal utility.

Public Interest

The well-being of the general public, often considered within the context of government policy-making.

Tax Incidence

The analysis of the effect of a particular tax on the distribution of economic welfare, including who ultimately pays the tax.

Deadweight Loss

A loss of economic efficiency that occurs when the equilibrium for a good or service is not achieved or is not achievable.