Imagine you are a forensic investigator giving a presentation to a school assembly. A student asks you, “If people have such a similar genetic makeup, then why do you use DNA to understand whether suspects are innocent or guilty of a crime?” In 1–2 sentences, describe how you might answer the student’s question.l
DNA is used in forensic investigations because even though humans share a similar genetic makeup, there are specific variations in DNA sequences that make each individual unique and can be used to conclusively link or exclude them from a crime scene.
