Intro :
For this project, we worked to solve a crime. The crime that was committed was the murder of Carelton Comet. The crime goes as followed by the crime report. This left us with three different suspects : Nancy Normal, Theresa Terra, Fred Flimmer, Sam Sophomore, and Glen Glee. We started off by looking at all of the suspects pedigrees. By looking at the pedigrees we were able to see what and how the diseases in the family ran, as well as how all the people were connected. Also through pedigrees were able to conclude that Carlton Comet is also Thomas Sandstone. We can conclude this theory, because Thomas Sandstone had many children with different women and affected each of the suspects which is the description of Carelton Comet. The next piece of evidence we analyzed was fingerprints found on a glass table around Carelton Comet. By picking up the finger print off the glass table with tape and dusting it with graphite, we were able to see that the finger print belonged to Nancy Normal. Furthermore, on the knife used to kill Carleton Comet was found two types of blood. The two types of blood found on the knife were blood type O and A. The only person with blood type O was Carelton Comet and we narrowed down the suspects with blood type A to Thomas Sandstone, Glen Glee, and Nancy Normal. Although this doesn't prove the blood on the knife was Nancy it still points to her. However when we ran the suspects DNA, as well as the two DNAs found on the knife, through gel electrophoresis we found that Carleton Comet's and Nancy Normal's DNA matched those of the ones found at the crime scene. Next we compared the karyotypes of the victims to the ones found at the crime scene. We found again that Carleton Comet's and Nancy Normal's karyotypes matched those found at the crime scene. Also using karyotypes we found that Nancy Normal has XXX syndrome which is further explained in our Prezi. Our final piece of evidence was a note that read "You are a dead man". Using chromatography, we compared three different pens from three different suspects to the one used to write the note. Comparing the size, shape, and color of the pens we were able to conclude that Nancy Normal's pen was the one used to write the note. Knowing all of this, we can say that Nancy Normal is guilty of first degree murder.
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Prezi Link :
Concepts :
- Probability: likelihood that a particular event will occur
- Ink Chromatography: the process we used to determine the pen ink used to right the note. A dot of ink was put on a paper that was then put in isopropyl. We then saw how much the ink traveled on the paper. See the above presentation for pictures.
- Homozygous: term used to refer to an organism that has two identical alleles for a particular trait
- Heterozygous: term used to refer to an organism that has two different alleles for a particular trait
- Alleles: one of a number of different forms of a geneDominant: has power over the recessive traits
- Recessive: falls under dominant
- Co-dominant: when both alleles of a gene contribute to the phenotype of the organism
- Incomplete Dominant: situation in which one allele is not completely dominant over another
- Polygenic: trait controlled by two or more genes
- Segregation: separation of alleles during gamete formation
- Gene: sequence of DNA that codes for a protein and thus determines a trait.
- Genotype: genetic makeup of an organism
- Phenotype: physical characteristics of an organism
Reflection :
This project was long, but very fun and cool to learn about. It was very interesting to see all the work forensic scientists go through to help solve a crime. Everything we did in this project ran very smoothly except our gels. The first set of gels kept leaking and wouldn't solidify and so we had to redo them, however the second time they worked perfectly. The rest of the project went great, and my group worked very fast and efficiently to get everything done on time. Throughout this project I felt my group worked very well together and everyone contributed the same amount of work. There were times when people would get distracted or off task, but it never affected our project or how much they contributed. Overall this project went very well, and it was very fun to do.