DNA and Crime

The video tutorial explores the evolution of DNA profiling in crime investigation. Initially, DNA profiling required large samples and was limited to determining blood type. However, advancements led to the development of DNA fingerprinting in 1984, which became a crucial tool in linking suspects to crimes. By 1997, techniques like polymerase chain reaction allowed forensic scientists to create DNA profiles from tiny samples, revolutionizing crime-solving. DNA profiling continues to advance, enhancing forensic science and making the world safer by identifying criminals with minimal evidence.

What is the polymerase chain reaction and how is it used in forensic science?

How has DNA profiling changed the way criminals are identified?