Study at the basic level of the building blocks of bodies (cells), focusing on DNA.

Study at the basic level of the building blocks of bodies (cells), focusing on DNA.

• A. Ecology
• B. Ethology
• C. Cellular and molecular genetics
• D. Population genetics

Answer: (C)

The focus is on how genes operate inside cells, with DNA serving as the blueprint for cellular function. Cellular and molecular genetics examines DNA structure, gene expression, regulation, replication, and how mutations influence cell behavior and traits. This level connects the molecular code directly to the functioning of cells and organisms, which matches the described study of the basic building blocks. Ecology looks at how organisms interact with environments, ethology studies behavior, and population genetics analyzes genetic variation and evolution in groups—areas that are broader or different in focus from the cellular and molecular mechanisms tied to DNA.

The focus is on how genes operate inside cells, with DNA serving as the blueprint for cellular function. Cellular and molecular genetics examines DNA structure, gene expression, regulation, replication, and how mutations influence cell behavior and traits. This level connects the molecular code directly to the functioning of cells and organisms, which matches the described study of the basic building blocks. Ecology looks at how organisms interact with environments, ethology studies behavior, and population genetics analyzes genetic variation and evolution in groups—areas that are broader or different in focus from the cellular and molecular mechanisms tied to DNA.