Which of the following examples demonstrates how DNA technology has been used in medicine?

• A. Application of chemotherapy in cancer treatment
• B. Development of insulin through recombinant DNA technology
• C. Use of X-rays for imaging bones
• D. Use of ultrasound for prenatal screening

Answer: (B)

Verified step by step guidance

1. Understand the context of DNA technology: DNA technology involves the manipulation and use of genetic material to achieve specific outcomes, often involving recombinant DNA techniques.
2. Identify the options provided: The problem lists several medical applications, but only one involves the use of DNA technology.
3. Evaluate each option: Consider whether each option involves the manipulation of DNA or genetic material.
4. Focus on recombinant DNA technology: This technique involves combining DNA from different sources to create new genetic combinations, often used to produce proteins like insulin.
5. Recognize the correct application: The development of insulin through recombinant DNA technology is a direct application of DNA technology in medicine, as it involves inserting human insulin genes into bacteria to produce insulin.