2.  DNA fingerprinting is the
method of extracting a
person’s DNA and finding their
specific DNA banding pattern.
This pattern is unique to every
person and depends on the
order of nitrogen bases in their
DNA.

3.  The three types of DNA fingerprinting are:
 RFLP
 STR
 Mitochondrial DNA Analysis

4. 1. Extract the DNA from cells or tissues of the
body.
2. Add an restriction enzyme that cuts the
DNA.
3. Put the cut DNA pieces on to a nylon
sheet, then place the sheet on a gel and
let it soak. (Gel Electrophoresis)
4. Add probes that produce the pattern of
the DNA fingerprint.

5. 1. Extract the DNA
2. Add radioactive probes. This shows
points in the DNA, no person has the
probes in the same spot on their DNA.

6.  Mitochondrial DNA Analysis uses the
same steps as RFLP except it uses
mitochondrial DNA instead of DNA from
the nucleus.

7.  Find suspects of crimes or eliminate them
as a suspect.
 Identify victims of crime or catastrophe.
 Identify parentage or family relationships.
 Diagnose or find cures for inherited
disorders.

8.  There are advantages for every type.
1. RFLP was the first type of DNA
fingerprinting.
2. Mitochondrial analysis is better than
RFLP and STR because you can use it on
older, degraded DNA.
3. STR is faster than RFLP and can be used
on a smaller amount of DNA.

9.  Privacy, if we stored a person’s
fingerprint we would have access very
personal information.
 Space, if we started taking DNA we
wouldn’t have enough room for it all.

10.  http://www.ornl.gov/sci/techresources/H
uman_Genome/elsi/forensics.shtml
 http://www.defending.com/dna-
fingerprinting-process
 http://www.odec.ca/projects/2004/fren4
j0/public_html/dna_fingerprinting.htm
 http://www.accessexcellence.org/RC/A
B/BA/DNA_Fingerprinting_Basics.php