When Concordance Rates Are Higher Among Monozygotic Twins Than Dizygotic

question 156

Multiple Choice

When concordance rates are higher among monozygotic twins than dizygotic twins, this indicates which of the following?

• A)There is partially a genetic basis.
• B)There is partially an environmental basis.
• C)There is a 100% environmental cause.
• D)There is a 100% genetic cause.

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Definitions:

Nonexcludable

A characteristic of public goods where it is not possible to prevent individuals from using the good or service, regardless of whether they have paid for it.

Free-rider Problem

A situation in which some individuals benefit from resources or services without paying for them, leading to underprovision of those goods or services.

Marginal Private Benefit

The additional benefit received by the consumer or producer from consuming or producing one more unit of a good or service.

Marginal Social Cost

The additional cost imposed on society as a whole from producing one more unit of a good or service.