Even When Twin Studies Find That Monzygotic Twins Have Higher

question 54

Multiple Choice

Even when twin studies find that monzygotic twins have higher concordance rates than dizygotic twins, it is possible these results are not due to genetics but to the possibility that

• A) DZ twins are usually treated very similarly.
• B) MZ twins may be treated more similarly than DZ twins.
• C) MZ twins are easier to locate and study.
• D) DZ twins are more likely to live in similar environments.

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Definitions:

Constant Cost Industry

An industry in which the input prices and the costs of production do not change as the industry's output changes.

Downward Sloping

Describes a curve or line on a graph that shows a decrease in one variable as another variable increases, typical of demand curves in economics.

Aluminum Cans

Containers made from aluminum used for packaging beverages and food items.

Long-run Average Total Cost

A metric reflecting the per-unit cost of producing a certain output level, considering all variable and fixed costs over time.