Researchers Hypothesized That a Particular Gene That Affects the Neurotransmitter

question 23

Multiple Choice

Researchers hypothesized that a particular gene that affects the neurotransmitter dopamine was involved in schizophrenia and then identified one group of subjects with schizophrenia and another without and examined whether the two groups had different alleles for the candidate gene.This is a(n)  ______.

• A) family study
• B) linkage study
• C) association study
• D) behavioral study

---

Definitions:

Mixed Sales

Transactions that involve both the provision of a service and a tangible product, where different aspects of the sale may be subject to varying legal rules.

Combined Sales

The total sales volume resulting from the aggregation of different products or services sold by a company.

Contracts

Legally binding agreements between two or more parties that are enforceable by law.

Tangible Things

Objects or items that can be physically touched and seen, possessing material existence as opposed to abstract concepts.