DNA fingerprinting.

Slides:

Advertisements

Similar presentations

Although humans have used biotechnology for thousands of years, discoveries made in the 1960s and 1970s increased our understanding about cells and molecules,

Advertisements

DNA fingerprinting, also called forensic DNA analysis, is considered by many to be the police investigator's secret weapon, a means of building cases.

Make sure you have the lab information and colored pencils. 

 Obtain a copy of the lab and data sheet from Mrs. Liggett.  Read over the Directive from the Chief of Police and the Crime Scene documentation.  Read.

DNA fingerprinting (DNA指紋圖譜) By Yu Zhi Heng 7B (30)

DNA FINGERPRINTING - AN ETHICAL ISSUE?. Student Activity  Who discovered DNA? and at which university?  What is DNA?  In what year do you think DNA.

DNA fingerprinting.

13.3- The Human Genome. What is a genome? Genome: the total number of genes in an individual. Human Genome- approx. 20,000 genes on the 46 human chromosomes.

Forensics Beyond reality

How can DNA be used to solve Crimes?

Forensic science lab 4.4 What equipment do forensic scientists use to assess evidence?

DNA Analyst Mystery Incorporated Kaleigh Rubino, Stephanie Penhale, and Brooke Dooley.

Blood stains 4.10 What can you tell from a blood stain?

Criminal Investigations 1.The Crime Scene 2.ID Suspect 3.Informants.

Crime Scene Investigation and Evidence Collection.

DNA & Proteins B3a.

Intro to Forensic Science What is Forensic Science?

DNA The Golden Key of Forensic Evidence. DNA Deoxyribonucleic Acid Can be taken from cellular tissue or bodily fluids – Examples: hair, bones, blood,

DNA Profiling (DNA fingerprinting). What is DNA Profiling? A technique used by scientists to distinguish between individuals of the same species using.

 DNA can be collected from any living tissue:  blood, skin, hair, urine, semen, sweat or tears.

Lesson 1 bzzz Sung T’su 1235 AD “Forensic” comes from the Latin word “forensis” meaning forum. During the time of the Romans, a criminal charge meant.

CJ 210 CRIMINAL INVESTIGATON. The Investigator Responsibilities and Attributes; Origins and trends.

AP Biology DNA Fingerprinting AP Biology Many uses of restriction enzymes…  Now that we can cut DNA with restriction enzymes…  we can cut.

Watson & Crick Discovered the basic shape of DNA

1 Chapter 2 Crime Scene Investigation and Evidence Collection By the end of this chapter you will be able to: o Summarize Locard’s exchange principle o.

DNA fingerprinting.

Sgt. Kevin McKinney Investigations Division Elko County Sheriff’s Office.

Human Genetics and Genetic Technology Using Genetic InformationUsing Genetic Information.

Criminal Investigations 1.The Crime Scene 2.ID Suspect 3.Informants.

How many people believe DNA testing is reliable ?.

Human Fallability Cheng JieCHIK Yi ShinLEE Wei ZhengTEO EugeneTOH.

Forensics (DNA Technology). What is DNA? DNA is the carrier of genetic information and provides a structural plan for proteins. It consists of linear.

DNA FINGERPRINTING.

The Jon Benet Ramsey Case Catalyst: What were the issues with the original investigation? What went wrong?

Forensics. What is Forensic Science? Forensic comes from the Latin word forensis. It means: for public discussion or debate. Forensic science is science.

BY K.UDAY KIRAN REDDY. CONTENTS Historical background What is DNA Fingerprinting Structure of DNA Making DNA Fingerprints Practical applications of DNA.

Physical and biological evidence. Evidence can be classified as Physical or Biological. Physical evidence usually comes from a non-living origin and includes.

DNA Profiling (DNA fingerprinting)

DNA TECHNOLOGY. POLYMERASE CHAIN REACTION Polymerase Chain Reaction (PCR) is used to copy and amplify tiny quantities of DNA. When researchers want to.

Inherited Diseases. A pedigree showing haemophilia in Queen Victoria’s family.

Chapter 2: Types of Evidence. 1. Testimonial Evidence – statement made under oath by a competent witness Juries are heavily influenced by eyewitness accounts.

DNA EVIDENCE. What is DNA? DNA stands for deoxyribonucleic acid and contains genetic information. DNA is a polymer composed of building blocks called.

Unit 11 Lesson 2.

DNA Forensics Bio Interpret how DNA is used for comparison and identification of organisms.

The Jon Benet Ramsey Case

Forensic Specialist.

DNA Profiling LEARNING OUTCOMES: State what DNA profiling is

Crime Scene Investigation

Vocabulary Terms and Definitions

DNA Forensics Bio Interpret how DNA is used for comparison and identification of organisms.

Goal: to recognize, document and collect evidence at a crime scene

Stain Patterns of Blood

DRILL: What are some things you have see on TV about the field of forensics?

DNA Fingerprinting Cloning Human Genome Project

Anderson Cooper CSI Effect – Hairs & Fibers

DNA Fingerprinting.

Criminal Investigations

DNA Profiling (DNA fingerprinting).

DNA Profiling and using electrophoresis

DNA Fingerprinting 13.3 What is DNA used for?

DNA ELECTROPHORESIS OR DNA FINGERPRINTING.

DNA Profiling (DNA fingerprinting).

Anderson Cooper CSI Effect – Hairs & Fibers

Biotechnology Gel Electrophoresis

DNA Electrophoresis

DNA Profiling (DNA fingerprinting).

DNA Profiling (DNA fingerprinting)

Gel Electrophoresis & DNA Fingerprinting

Bellringer: What does the term “biotechnology” mean?

Presentation transcript:

DNA fingerprinting

What is DNA fingerprinting? DNA fingerprinting is a laboratory technique used to link biological evidence and a suspect in a criminal investigation. A DNA sample taken from a crime scene is compared with a DNA sample from a suspect. If the two DNA are a match, then the evidence came from that suspect.

The test is used to determine whether a family relationship exists between two people, to identify organisms causing a disease, and to solve crimes. Only a small sample of cells is needed for DNA fingerprinting. A drop of blood or the root of a hair contains enough DNA for testing. FOR WHAT?

How is it used? They can compare the DNA in samples found at a crime scene with DNA from possible victims and suspects. By comparing DNA’S, they can link victims to crime scenes. FBI and police labs around the us have begun to use DNA fingerprints to link suspects to evidence- blood or semen stains, hair or items of clothing found at the scenes of a crime. Since 1987 more than 150 cases have been closed with the use of DNA fingerprinting evidence.

DNA fingerprinting is now used as a routine to solve crimes DNA fingerprinting is now used as a routine to solve crimes. In recent years, new stories have reported how a lot of DNA has been used to identify individuals involved in crimes.

Pros of DNA fingerprinting:

DNA evidence used during a criminal trial can be used both for convincing of guilty and convincing of innocence.

DNA fingerprinting for hereditary diseases can give medical professionals the information they need to help patients delay or prevent diseases.

paternity can be established.

CONS OF DNA fingerprinting:

the accuracy of DNA fingerprinting testing is dependent on experience and lab equipment.

DNA can degrade over time which would result in inaccurate information

inaccurate DNA results could convict an innocent person of a crime.

I think they should definitely use DNA fingerprinting I think they should definitely use DNA fingerprinting. It can help us get closer to the clues faster. They are able to get so much information from it. It is very useful for our society needs. It breaks everything in simple terms.

SOURCES: http://www.webmd.com/a-to-z-guides/dna-fingerprinting#1 http://jdutchstevens.tripod.com/id4.html http://www.exploreforensics.co.uk/dna-fingerprinting.html https://www.healthlinkbc.ca/health-topics/zm2567