Warm-Up: Trivia Challenge 1. What is the name given to the study of fingerprints? A. Dactyloscopy B. Palynology C. Entomology D. Trichology 2. What causes fingerprints to be left behind when we touch things? A. Salt produced by our sweat glands C. Moisture in the atmosphere B. Natural oils in the skin D. Dust on the things we touch 3. Which of the following is NOT one of the 3 basic types of fingerprint patterns? A. Loops B. Whorls C. Arches D. Spirals 4. Which animal is said to have fingerprints virtually indistinguishable from those of human beings? A. Panda B. raccoon C. koala D. lemur 5. Who is generally recognized as being the first person to use fingerprints as a means of identification? A. Alphonse Bertillon C. Dr Henry Faulds B. Sir William Herschel D. Sir Edward Henry

Answers 1. What is the name given to the study of fingerprints? A. Dactyloscopy B. Palynology C. Entomology D. Trichology 2. What causes fingerprints to be left behind when we touch things? A. Salt produced by our sweat glands C. Moisture in the atmosphere B. Natural oils in the skin D. Dust on the things we touch 3. Which of the following is NOT one of the 3 basic types of fingerprint patterns? A. Loops B. Whorls C. Arches D. Spirals 4. Which animal is said to have fingerprints virtually indistinguishable from those of human beings? A. panda B. raccoon C. koala D. lemur 5. Who is generally recognized as being the first person to use fingerprints as a means of identification? A. Alphonse Bertillon C. Dr Henry Faulds B. Sir William Herschel D. Sir Edward Henry He was a government administrator in colonial India and began using fingerprints in July 1858 to identify illiterate prisoners and workers in India.

Objective SWBAT understand what CODIS provides to forensic scientists and investigators.

Agenda CODIS System FBI Brochure CODIS Simulation Exit Slip

CODIS CODIS is the acronym for the “Combined DNA Index System” and is the generic term used to describe the FBI’s program of support for criminal justice DNA databases as well as the software used to run these databases. The National DNA Index System or NDIS is considered one part of CODIS, the national level, containing the DNA profiles contributed by federal, state, and local participating forensic laboratories.

CODIS The DNA profile also known as a DNA type is stored in the database. For Forensic STR DNA analysis, the DNA profile consists of one or two alleles at the 13 CODIS Core Loci.

FBI Brochure Log on to the Google Classroom Select the FBI Brochure Link Read through the information on this page – you will have 10 minutes

CODIS Simulation We will simulate a genotyping at one of the loci commonly used in forensic typing. In reality, DNA profiling is performed at a number of different loci; the larger the number of loci profiled, the more powerful the ability to find a match.

Everyone Stand There is an eyewitness who saw the criminal run from the crime scene and has provided a description.

Connection Adding more pieces of observation to a physical description of the escaping criminal made it more likely to identify the correct person. In exactly the same way, adding more genetic loci to the DNA profiling profile makes in a much more powerful tool for solving crimes.

STR Alleles at 4 loci VWA (blue) Chromosome 12 D8 (green) Chromosome 8 D5 (yellow) Chromosome 5 TH01 (red) Chromosome 11 Directions: Need one student to be “mom” and one student to be “dad” and you will determine your genotype. Everyone else will inherit your STR genotype by selecting at random one allele from each of Mom’s bags and one allele from each of Dad’s bags Data is entered on the chart

Random Match Probabilites

Discussion Questions

Exit Slip October 16, 2014 Get out a mobile device or use one of the computers and go to m.socrative.com. You can also use one of the iPads that has the Socrative app. When prompted, enter 417101 for the room number. QUESTION: What is the CODIS system and how is it used?