Adapted from biology corner worksheet on DNA Fingerprinting.

_____ are used to cut DNA into small pieces.
Examine the sequence and indicate where the Smal enzyme cuts the DNA and how many fragments are created.
How many fragments are created?

PCR stands for ________ ________ ________
The purpose of PCR is to

_____ DNA fragments move farther in the gel.
The length of DNA fragments is marked down the side of the gel plate and measured in bp, which stands for ____ ____.

If DNA samples are a match, the number and length of the ____ should line up.
Examine the sample taken from a crime scene, which suspect matches the sample?

Which teacher ate the sandwich?

On the diagram, color (or shade) and fragment that matches mother’s DNA. Any other fragments must then match the father. Color the father’s DNA a different color.
Which one is the father?








How many fragments are created?
The tool used to transfer samples to a gel plate is the _______ shown in the picture.
How many fragments were in sample A?
Which sample had the shortest fragment ?