Which of the following is a common application of biotechnology in medicine?

• A. Development of renewable energy sources
• B. Creation of biodegradable plastics
• C. Development of recombinant insulin
• D. Improvement of agricultural yields

Answer: (C)

The development of recombinant insulin is a prominent application of biotechnology in medicine. This process involves using genetic engineering techniques to produce human insulin by inserting the human insulin gene into bacteria. These bacteria then replicate and produce insulin, which can be harvested and purified for medical use. This method has revolutionized diabetes treatment because it provides a reliable, scalable source of insulin that closely mimics naturally occurring human insulin, reducing the risk of allergic reactions and improving patient outcomes.

In contrast, while the other options reflect important advancements within their respective fields—such as renewable energy, biodegradable materials, and agricultural enhancements—they do not specifically pertain to medical applications. The focus of the question is on how biotechnology directly contributes to healthcare and therapeutic solutions, making recombinant insulin the most relevant and accurate choice.