Gene S Controls the Sharpness of Spines in a Type

question 44

Multiple Choice

Gene S controls the sharpness of spines in a type of cactus. Cacti with the dominant allele, S, have sharp spines, whereas homozygous recessive ss cacti have dull spines. At the same time, a second gene, N, determines whether or not cacti have spines. Homozygous recessive nn cacti have no spines at all. The relationship between genes S and N is an example of which of the following inheritance patterns?

• A) incomplete dominance
• B) epistasis
• C) pleiotropy
• D) codominance

---

Definitions:

Civilization Process

The historical development of complex societies characterized by institutional structures, technological advances, and refined cultural norms, as theorized by Norbert Elias.

Interdependence Chains

The complex series of relationships in which the actions or outcomes for one entity depend on other entities within a network or system.

Structuration Theory

This theory, developed by Anthony Giddens, explains how social practices are created and recreated through the agency of individuals within the constraints of social structure.

Agency

The capacity of individuals to act independently and make their own free choices, influenced by the structures within a society.