Introduction to DNA Profiling and Forensics: Understanding DNA Patterns and Fingerprinting

Dec 16, 2025

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This enlightening presentation by Dr. Gail Davies delves into the intriguing world of DNA and its critical role in forensics. Learn about DNA profiles, the complexity of DNA fingerprints, and how they are analyzed. Discover the 11 variations within our DNA that make each profile unique, with a staggering probability of one in a billion for matches. Explore the practical applications of DNA profiling in establishing family relationships, identifying crime suspects, and even reuniting lost pets. Dive into the science that unravels mysteries and connects lives.

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Introduction to DNA Profiling and Forensics: Understanding DNA Patterns and Fingerprinting

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Presentation Transcript

An Introduction to DNA & Forensics Looking at Simple DNA Profiles Dr Gail Davies
Looking At DNA • DNA patterns • DNA Fingerprints
DNA Fingerprints are Difficult to Interpret
DNA Profiles: Look at Set Places in Our DNA • Forensic Science Service • 11 different places • Lots of variation at those places • Someone having the same profile as you: One in a thousand million 1 in 1,000,000,000

Uses Of DNA Profiles • Family relationships • Who is the father? • Are they brothers? • Are twins identical? • Identification • Crime Suspect/Victim • Disasters