Biotechnology began when humans began which activities?

• A. Planting crops, domesticating animals, fermenting foods, making cheese, and leavening bread.
• B. Only after the discovery of DNA structure.
• C. With the invention of modern genetic engineering.
• D. When computers first simulated biological processes.

Answer: (D)

Biotechnology begins when people start using living systems to change materials or organisms for practical ends. Long before modern science, humans already manipulated biology in everyday ways: planting crops to harness plant growth, domestically breeding animals for traits like temperate behavior or yield, and using microbes to transform foods through fermentation. Fermenting grains for bread, producing beer, making cheese, and other food processes rely on biological activity and selection, showing an intentional and sustained use of biology to create useful products. These ancient, hands‑on practices illustrate the roots of biotechnology as applied biology in daily life. Later developments like discovering DNA, engineering genes, or simulating biology with computers are important advances, but they come after these early, practical beginnings.