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Serology Blood Typing ABO Blood Typing
Serology http://www.bing.com/images/search?q=anti%20abo&qs=n&form=QBIRMH&pq=anti%20abo&sc=8-8&sp=- 1&sk=#view=detail&id=9B65A26E913EDC14897103B3B03EA0D1E9F4374F&selectedIndex=30
Serology Presumptive vs. Confirmatory Testing Blood: TMB : Tetramethylbenzidine + H2O2 -> blue/green HemaTrace LMG Luminol BlueStar
Serology Gatekeeper of DNA analysis Extraction Quantification Amplification Capillary Electrophoresis Data Analysis
Amplification PCR = Polymerase Chain Reaction 1.Denature 2.Anneal 3.Extend
Data Analysis Single Source:
Data Analysis Mixture:
Hair Cuticle Scales Cortex Medulla
Hair Stages of hair growth: 1.Anagen 2.Catagen 3.Telogen
Fingerprint Analysis Collecting prints: Porous surfaces (anything that can absorb): Ninhydrin : causes purple reaction DFO : glows when illuminated by light Nonporous surfaces (things that don’t absorb): Powder (black and fluorescent) Pictures Cyanoacrylate (superglue fuming)
Example 1.Look at unknown 1.Shape 2.Minutia 2.Compare
Blood Spatter Analysis Methods: -Angle of Impact -Direction of Travel -Stringing
Blood Spatter Analysis
Glass Analysis -Concentric Cracks -Radial Fractures Which came first? A or B?
Forensic Science T. Trimpe 2007
Extraction and Amplification of DNA from Different Hair Samples Gemma Fryatt Abstract Our bodies are completely covered in hairs of different thicknesses,
1.Turn in Ch. 10 foldable if you have not already done so. 2.Take out your notebook and complete the bellringer. Bellringer: Describe Locard’s Exchange.
PCR POLYMERASE CHAIN REACTION Dauphin Island Graduate Neurobiology.
Forensic Science: Fundamentals & Investigations, Chapter 3 1 The Life Cycle of Hair Hair proceeds through 3 stages as it develops: o Anagen stage: hair.
Polymerase Chain Reaction (PCR) Used to amplify a sample of DNA Many applications, including: DNA sequencing Phylogeny Diagnosis of genetic disorders Identity.
What are fingerprints? Impressions left on any surface composed of patterns made by the friction ridges – Same definitions could apply to toe, foot, or.
Forensic Science. Latent prints are impressions left by friction ridge skin on a surface, such as a tool handle, glass, door, etc. Prints may be collected.
Identification and Characterization of Blood and Bloodstains.
Discovered that they are unique. No 2 alike. A classification system was developed. Loops Whorls Arches.
Fingerprinting in the Digital Age Catherine Myers Independent Research Advisor: Gary Hauptmann Forensic Analyst Baltimore County Crime Lab.
Forensic Science: Fundamentals & Investigations, Chapter 3 1 Types of Hair Buckled Blunt Double Medulla o A cross section: circular, triangular, irregular,
Forensic Science Adopted from T. Trimpe 2007
Latent Fingerprints Plastic and Visible Too.. Plastic Prints Also called indented or molded prints Made by pressing finger against a plastic-like material.
CJ386-Unit 2:Forensic Serology Review TMB & Kastle Meyer- Examples of presumptive color tests for blood Luminol and Blue Star- Causes difficult to see.
Forensic Science Unit 3 Part 3 T. Trimpe 2007
Forensic Science Hair Evidence: Microscopic Examination Hair Evidence: Microscopic Examination.
The impact of fingerprint reagent – cyanoacrylate on DNA 8 th International Symposium on Forensic Sciences Šamorín – Čilistov september 27 th 2007 Zuzana.
Trace Evidence: Hair Encountered at crime scenes Not good for “individualization” of physical evidence 1. No distinctive chemical properties 2. Although.
Fingerprints Part II. Types of Fingerprints Visible prints – made by fingers touching a surface after the ridges have been in contact with a colored material.
Fingerprinting Basics Forensic Science 2. Fingerprint Principles According to criminal investigators, fingerprints follow 3 fundamental principles: A.
Chapter 3 Forensic Laboratory Techniques © 2012 Cengage Learning. All Rights Reserved.
Types of Crime Scene Prints. Three Types: Patent Prints Plastic Prints Latent (Invisible) Prints.
September 10, 2014 FINGERPRINTS DAY 2: RIDGE CLASSIFICATION AND LIFTING PRINTS.
Serology Unit Review. Question: What blood type does a person with A and B antigens but no Rh antigens present on their RBC’s surfaces have? Answer: Blood.
Hairs Trace Evidence. Hair as Physical Evidence ■ Class evidence ■ Removal indicates physical contact between victim and perpetrator- Locard’s Principle.
Forensic Analysis of Hair. How useful is hair in a forensic investigation? Used to back up circumstantial evidence and help place individuals at the crime.
T. Trimpe Types of Prints Visible prints are made when fingers touch a surface after the ridges have been in contact with.
Objective: Identify vocabulary terms Forensic Science: Fundamentals & Investigations, Chapter 3 1 Chapter 3: The Study of Hair Day 1.
Chapter 2: Sources of DNA Evidence. DNA is located in cells which are the building blocks of the human body Two Types of cells: Sex Cells Somatic.
FINGERPRINTING. Can any two people have the same fingerprint?
Latent prints – invisible Use – 1. high-intensity UV light 2. dusting – finely ground powders stick to fingerprint residues, lifted with tape, attached.
Hair Analysis. Uses Most often in forensics, comparison tests are done to identify similarities with victims. Other possible uses for hair is to do toxicology.
Forensic Science: Fundamentals & Investigations, Chapter 3 1 Chapter 3 The Study of Hair By the end of this chapter you will be able to: o Identify the.
The PCR The Polymerase Chain Reaction. The PCR is used to make copies of DNA (amplification). Whole genome OR DNA fragments.
Forensic Serology Identification Using Blood Groups.
Forensic Science Lab Activity T. Trimpe Warning: Some material in this presentation and related videos may be too graphic.
Fingerprints. Outline Individuality of Fingerprints What are fingerprints? Classification of fingerprint patterns AFIS Methods of detecting.
Forensic Science Lab Activity. Please see Blood Spatter Labs 1 & 2.
Polymerase Chain Reaction (PCR) is when you amplify the number of copies of a specific region of DNA, in order to produce enough DNA it be adequately.
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