Which of the following is an example of a biopharmaceutical?

Monoclonal antibodies are indeed an example of a biopharmaceutical. These are engineered molecules that are derived from living cells and designed to target specific antigens in the body, typically in the context of diseases like cancer. The production of monoclonal antibodies involves sophisticated biotechnological techniques that include the use of hybridoma technology, which allows for the creation of antibodies that can specifically bind to a single type of antigen with high specificity and affinity.

Biopharmaceuticals typically include a broad range of products such as vaccines, therapeutic proteins, and gene therapies that are often more complex than traditional pharmaceuticals, which are usually small molecules synthesized through chemical processes. Monoclonal antibodies represent a significant advancement in targeted therapy, demonstrating the capabilities of biotechnology to create sophisticated treatments that can improve patient outcomes through mechanisms that are more tailored than conventional drugs.

The other options listed, such as aspirin, ibuprofen, and tetracycline, are all traditional pharmaceuticals, which are small organic molecules used for a wide range of medical purposes. While they are effective medications, they do not fit the classification of biopharmaceuticals, which arise from biological processes.