Fingerprints Science Fair Projects On Siblings

Science Fair Projects :: Biology :: Microbiology :: Genetics

Does Genetics Rule?

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Genetics Science Fair Projects begins here...

PROCEDURES

1. Get a fingerprinting kit.
2. Obtain subjects.
a) 25-30 biological siblings.
b) Non-related people must be expanded past cousins in a family.
3. Take fingerprint samples.
a) Spread ink on the pad.
b) Spread thinly with brayer.
c) Roll 1 finger.
d) Print 1 finger.
e) Repeat with all fingers on both hands.
f) Label all with this subject’s code.
4. Study fingerprint samples for one individual.
a) Classify the prints as loop, whorl, arch, or abstract.
b) Record data for this individual.
5. Repeat step four for all individuals
6. Determine the percentage of fingerprints that are alike within each sibling group.
7. Label group.
8. Write down the conclusion.
9. Repeat steps a-e until all sibling groups are completed.
a) Separate the fingerprints from their matches.
b) Put a fingerprint sample with one that doesn’t match it (Example: 7a with 5b)
c) Classify the prints as loop, whorl, arch, or abstract.
d) Determine the percentage of fingerprints that are alike in that group.
e) Label group.
f) Write down conclusion.
g) Shred fingerprints.
h) Repeat steps a-f until all non-related groups are complete.

RESULTS

The original purpose of this experiment was to study the effect of similarity of fingerprints in a family.

The results of the experiment were that the siblings had a higher percent of fingerprint similarity than of those who were unrelated.

See the table and graph below.

CONCLUSION

My hypothesis was that siblings would have a higher percentage of similar type of fingerprints than people who are unrelated.

The results indicate that this hypothesis should be accepted, because they show that the groups of siblings had a higher similarity rate than those of the people who were not related.

After thinking about the results of this experiment, I wonder if parents share the same type of fingerprints as their children.

If I were to conduct this project again, I would have taken more fingerprint samples. Also, I would have made more trials for the experiment. 3rd party credit

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