DNA Fingerprinting Now called “DNA profiling" or "DNA typing” CC image - kevindooley on Flickr CC image - Wellcome Images

4 Steps:

4 Steps: COPY

4 Steps: COPY CUT

4 Steps: COPY CUT SEPARATE

4 Steps: COPY

Polymerase Chain Reaction PCR or Polymerase Chain Reaction makes many copies of DNA from a small original sample.

CC image by rox via Flickr

4 Steps: COPY CUT

cut along very specific patterns in the DNA sequence Restriction Enzymes cut along very specific patterns in the DNA sequence

4 Steps: COPY CUT SEPARATE

Uses electricity to separate the fragments by size Gel Electrophoresis Uses electricity to separate the fragments by size

CC image by Manic Street Preacher

CC image by Wim Coenen

Molecules are separated by size as they move down the gel CC image by Ernst Hempelmann

4 Steps: COPY CUT SEPARATE COMPARE

CC image by windelbo via Nixuz

CC image by windelbo via Flickr

4 Steps: COPY CUT SEPARATE COMPARE