How does biotechnology assist in diagnosing diseases?

• A. By performing surgeries on affected individuals
• B. By developing tests that detect specific genetic markers
• C. By analyzing patient body mass index
• D. By providing lifestyle recommendations

Answer: (B)

Biotechnology plays a significant role in diagnosing diseases primarily through the development of tests that detect specific genetic markers. These tests are designed to identify sequences of DNA or RNA associated with certain conditions or diseases, enabling healthcare providers to make informed decisions regarding diagnosis and treatment.

Genetic markers can indicate the presence of genetic disorders, predispositions to certain diseases, and infectious agents. For instance, techniques such as PCR (Polymerase Chain Reaction), microarray analysis, and next-generation sequencing allow for the precise identification of mutations or variations that may contribute to a patient’s health status. Early detection of such markers can lead to timely interventions and tailored therapies, improving patient outcomes.

While surgeries, body mass index analysis, and lifestyle recommendations are related to healthcare, they do not leverage biotechnology in the same systematic and targeted way that genetic testing does. These alternatives may assist in overall health management but do not provide the molecular insights that biotechnology enables for disease diagnosis.