The suffix "-gen" would typically relate to which concept?

The suffix "-gen" is derived from Greek, meaning "to produce" or "to generate." In medical terminology, it is frequently used to describe substances that cause or produce a certain effect or result. For example, a "carcinogen" is a substance capable of leading to cancer formation, indicating its role in producing that disease.

Understanding the context of medical terminology allows for better grasp of how different suffixes modify the meaning of root words. The other options refer to different suffixes or prefixes: "-ology" relates to the study of a subject, "-oid" signifies resemblance, and "-therapy" refers to treatment or healing, each of which has distinct uses in the medical field. Therefore, "-gen" correctly aligns with the concept of producing.