London IDEAS EducationDr Gail Davies

An Introduction to DNA & Forensics

Looking at Simple DNA Profiles

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 million1 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

Who is the Dad?

Can you now solve the Pedigree Dogs Mystery?

Reunite puppies with their families