How Is A DNA Profile Created In True Crime Investigations? - The Crime Reel

Описание: How Is A DNA Profile Created In True Crime Investigations? Have you ever wondered how forensic experts create a DNA profile from evidence found at a crime scene? In this informative video, we’ll explain the detailed process behind transforming tiny biological samples into a powerful tool for solving crimes. We’ll start by discussing how investigators collect biological evidence such as blood, saliva, hair, or skin cells using specialized tools. Then, we’ll explore how these samples are sent to forensic laboratories for analysis, where scientists carefully extract DNA while avoiding contamination. You’ll learn about the process of copying DNA through polymerase chain reaction (PCR), which allows for analysis even from very small samples. We’ll also cover how scientists focus on specific regions of DNA called short tandem repeats (STRs), which vary from person to person, enabling the creation of a unique genetic fingerprint. Additionally, we’ll explain how these profiles are compared to suspects’ DNA or uploaded into databases like CODIS to help identify individuals or link multiple crimes. We’ll also highlight the innovative technique of investigative genetic genealogy, which has helped catch notorious criminals by tracing family trees. Throughout this video, we emphasize the importance of accuracy and careful handling in producing reliable DNA profiles. Join us to discover how science is transforming crime solving and bringing justice.

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