A Gene Variant That,when Homozygous,may Be Common to People with Addictions

question 18

Multiple Choice

A gene variant that,when homozygous,may be common to people with addictions to different substances is

• A)the CFTR allele that also causes cystic fibrosis.
• B)the serotonin transporter A5.
• C)the A1 allele of the dopamine D(2)receptor.
• D)the dopamine transporter B3.

---

Definitions:

Producer Surplus

The discrepancy between the price at which producers are ready to offer a good and the actual amount they get for it.

Market Equilibrium

A situation in which market supply equals market demand, leading to stable prices where the quantity supplied is equal to the quantity demanded.

Consumer Surplus

The disparity between what consumers are prepared and capable of spending for a product or service and the actual amount they end up paying.

Market Price

The prevailing rate at which a service or asset is available for purchase or sale in a specific market.