How Does Recombinant DNA Identify Criminals? - Biology For Everyone

How Does Recombinant DNA Identify Criminals? Have you ever wondered how forensic scientists identify suspects using DNA evidence? In this informative video, we'll explain the role of recombinant DNA technology in criminal investigations. We'll start by discussing how DNA samples are collected from crime scenes, including blood, saliva, and other biological materials. You'll learn how scientists extract and analyze DNA to find unique genetic markers that can link a person to a crime. We’ll explore techniques like PCR, which copies specific DNA regions even from tiny or degraded samples, making analysis possible. The video also covers the importance of short tandem repeats (STRs), which are DNA segments that vary greatly among individuals and serve as reliable identifiers. Additionally, we'll explain how other genetic markers, such as Y chromosome and mitochondrial DNA, are used for specific cases like mixed samples or damaged DNA. You'll discover how DNA profiles are stored in databases like CODIS, enabling law enforcement to quickly match evidence with known offenders or previous cases. This technology has transformed criminal investigations, making it easier to solve cases that were once unsolvable. Whether you're interested in forensic science or criminal justice, understanding how DNA analysis works is essential. Join us for this engaging overview and subscribe for more insights into biology and forensic science.

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