Students use dna profiling to determine who robbed a bank. To see most graphics within 24 impressive dna fingerprinting worksheet images gallery please follow that hyperlink.
What two things are required to determine that a suspect s dna matches the sample left at the crime scene.
Crime scene dna fingerprinting worksheet. From the collection of crime scene specimens to the collection of exemplars investigations which include dna fingerprinting are conducted in a manner so that any potential evidence cannot become corrupt. What individuals are the only ones with the exact same dna. This sheet was created to accompany a nova dna fingerprinting simulation.
Ideally all the materials except the worksheets should be printed in colour and laminated. Topics available daily csi challenges crime scenes testimonial evidence physical evidence fingerprinting impression evidence hairs fibers chromatography blood basics forensic entomology forensic anthropology dna evidence arson investigation crash unit csi adventure geocaching activity supply companies supply list during the 2006 2007 school year i started teaching a 9 week course on. After they learn how the fbi s combined dna index system codis is used to match crime scene dna with tissue sample dna students use codis principles and sample dna fragments to determine which of three suspects matches evidence obtain at a crime location.
Several sets one per group of cards showing the dna profiles found around the crime scene and of the people in the dna database. In the last 15 years dna has played an increasingly important role in our legal system. Sunrise science this dna fingerprinting simulated crime scene activity is a great way to begin your unit on the structure function and processes of dna in order to elicit student interest in learning about the dna molecule.
The link to the nova simulation is listed on the worksheet. This particular impression dna fingerprinting worksheet 13 pdf forensic science crime scene investigation activities fingerprints above can be classed having posted by simply jane mcdonald at 2017 12 02 15 02 08. The students have to use dna fingerprinting to solve a crime and compare several created fingerprints to determine who committed the crime.
I introduce this crime scene situation on the first day of studying dna then do a series of. Because of the threat of evidence corruption all forensic investigations should be commenced as soon as possible at the crime scene. How is dna fingerprinting changing conclusiveness of physical evidence.
National forensic science technology center page 4 of 6 evidence marking and packaging all evidence collected at a crime scene or received at or during a crime scene investigation is inventoried and packaged prior to leaving the scene to prevent loss or cross contamination. Assemble a virtual dna fingerprint and use it to identify the culprit in a hypothetical crime. Do not give these materials to the students until later.