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Ivo Andric Primary School
The purpose of my project is to find out if
fingerprint patterns are inherited and is one
pattern more dominant within the same family.
What is fingerprint?
Fingerprints are the tiny
ridges, whorls and valley
patterns on the tip of each
finger. They form from
pressure on a baby's tiny,
developing fingers in the
womb. No two people have
been found to have the same
fingerprints -- they are totally
Fingerprints are ideal for this
purpose because they're
inexpensive to collect and
analyze, and they never
change, even as people age.
All of the ridges of fingerprints form
patterns called loops, whorls or arches:
Francis Galton devised a
method for classifying
fingerprints that proved
useful in forensic science.
What is Forensic Science?
Forensic science is the
application of science to
criminal and civil laws,
mainly—on the criminal
investigation, as governed
by the legal standards of
admissible evidence and
Instead of forensic powder,
you can use either baby
powder, corn starch, or cocoa
I used a baby powder.
I applied the powder using a
If your fingerprint is on a dark
surface, use the baby powder; if
on a light one, cacao.
Only the tips of the bristles
should be covered with powder.
Then, tap the brush to remove
any excess powder.
Gently sweep the brush carefully over the
area where you put your fingerprint.
Make sure to not apply too much pressure
so that you do not wipe the print away.
If necessary, add more powder to the brush,
but be careful not to add too much.
Use a piece of clear tape and carefully
press the tape down onto the surface on
top of the developed fingerprint.
Peel the tape off and transfer the
fingerprint onto a piece of paper. (If you
used dark cacao, use white paper; for
baby powder, use black.)
Fingerprints were incomplete.
I achieved a much better result
using a glass surface of a mobile
How to get the fingerprint?
First you take the pen and draw on the post it until it has
a very black surface.
Then rub the finger you want to "print" hard on the post
it until its all black.
Now to lift the print take a piece of the tape and put on
the finger, rub it and lift it.
After that you just put it on the paper.
After that, I took the fingerprints of my family
members and analyzed them
In conclusion, I found that fingerprints
are inherited from biological parents
because they are very similar.
I realized that my mom and I have a
loop structure, and my brother and dad
have the structure of the circle.
These are the sites I used for the project: