Which field of study is primarily concerned with genetics?

• A. Botany
• B. Molecular Biology
• C. Microbiology
• D. Mental

Answer: (D)

The field of study that is primarily concerned with genetics is molecular biology. This discipline investigates the molecular mechanisms by which genes express themselves, including the structure and function of nucleic acids (DNA and RNA) and the processes of transcription, translation, and replication. Molecular biology employs techniques such as cloning, DNA sequencing, and gene editing to understand genetic regulation and inheritance, making it fundamentally tied to the study of genetics.

In contrast, botany focuses on the biology of plants, including their physiology, structure, and ecology, but it is not exclusively about genetics. Microbiology studies microorganisms like bacteria, viruses, and fungi, which may include aspects of genetics, but is broader in its scope of examining microbial physiology and behavior. The choice labeled "mental" does not correspond to a recognized field that involves genetics, which further establishes molecular biology as the primary field focused on genetic study.