ipl-logo

The Pros And Consequences Of DNA Fingerprinting

1660 Words7 Pages

The chemical structure of everyone's DNA is the same. The only difference between people (or any animal) is the order of the base pairs. There are so many millions of base pairs in each person's DNA that every person has a different sequence. Using these sequences, every person could be identified solely by the sequence of their base DNA fingerprinting also called DNA Typing in genetics is the method of isolating and making images of sequences of DNA (deoxyribonucleic acid). The technique was developed in 1984 by the British geneticist Alec Jeffrey’s, after he noticed the existence of certain sequences of DNA (called mini satellites) that do not contribute to the function of a gene but are repeated within the gene and in other genes of a DNA sample. Jeffrey’s also determined that each organism has a unique pattern of these mini satellites, the only exception being multiple individuals from a single zygote (e.g., identical twins). …show more content…

However, because there are so many millions of base pairs, the task would be very time-consuming. Instead, scientists are able to use a shorter method, because of repeating patterns in DNA. These patterns do not, however, give an individual "fingerprint," but they are able to determine whether two DNA samples are from the same (1) person, related people, or non-related people. Scientists use a small number of sequences of DNA that are known to vary among individuals a great deal, and analyze those to get a certain probability of a

Show More
Related

CILHI Summary

1623 Words | 7 Pages

A DNA molecule is composed of two complementary chains of four different types of nucleotides. Although more than 99.9% length of the human DNA (nucleotide) sequence is shared by all individuals, the remaining one thousandth is highly variable and specific to each person. As long as DNA molecules can be extracted from a single piece of bone, then amplified to an amount enough to sequence them, the bone will be sufficient to figure out the identity information unique to few individuals within a large population, sometimes to a single person. Because of this technology, the judgment of a soldier’s death will not need statures estimation from lengths of limbs, age prediction with pelvic bones, dental comparison, but just an alignment of a string of letter code (nucleotide sequence in a DNA) obtained from his bones with those from his relatives (conventional methods still play supportive roles as a single type of DNA identification alone is insufficient to determine one soldier’s identity). A person’s identity is not just his height, sex, race, and age, but a long array of A, T, C, G (four types of

Read More

Csi Effect Essay

760 Words | 4 Pages

The CSI Effect has been caused by the popular television show "CSI: Crime Scene Investigation" and has given viewers an unrealistic view regarding forensic scientists, the use of forensics, and the criminal investigation itself. Forensics has become a rapidly growing field and has only been applied to criminal investigations since the latter part of the nineteenth century. The earliest use of forensics can be traced back to the Bertillion System created by Alphonse Bertillion of the Paris Police Department. He believed that certain skeletal features and physical traits could help identify individuals. Bertillion would use several photographs of individuals to help aid the identification process.

Read More

Lizzie Borden Trial

1892 Words | 8 Pages

People in the military are fingerprinted, and it is also required for many other occupations and organizations. When it comes time to match a fingerprint with an individual, it is quite easy due to the wide library of fingerprints the FBI maintains. This library contains the fingerprints of “more than 10%” of the U.S. population. For smaller cases, law enforcement are given access to this library directly from a police station ("Forensic Science" [Gale] 18).

Read More

Summary: The Real CSI

579 Words | 3 Pages

My thoughts Forensic science is used everywhere. It can be used to arrest and convict someone of a crime. Before watching The Real CSI video, I thought using fingerprints and DNA will get you 100% accurate results. Throughout the video my thoughts about the subject began to change.

Read More

The Pros And Cons Of Fingerprinting

1172 Words | 5 Pages

Fingerprinting is method based on the uniqueness of the skin pattern - that is, each person has a completely individual pattern of papillary lines. These patterns do not change throughout life and have the property of recovering from damage to the skin in its previous form. On the one hand, this method almost completely eliminates the mistake, and on the other hand it is very cheap and easy to use (in contrast the method of identification of a person by DNA). Fingerprinting allows: 1) to identify the person who left the prints, according to the general and particular features of the papillary pattern displayed on them; 2) to exclude individual from among those who have touched the object; 3) to narrow the group of individuals suspected of the particular crime (for instance, provided that the imprint shows traces of a scar, a burn, a wart or some other distinctive feature).

Read More

Dna Fingerprinting Lab Report

1726 Words | 7 Pages

DNA Fingerprinting Using Agarose Gel S. Aaron Sowards Bio 122 Lab 04 Brianna Adanitsch Jakob Lester Minhenga Ngijoi 2/21/18 Dr. Chad R. Sethman Abstract DNA fingerprinting is the process of analyzing an individual’s DNA base-pair patterns. The DNA fingerprinting lab involved identifying the suspect using Agarose Gel and Polymerase Chain Reaction. It was found that suspect two s DNA matched the crime scene DNA.

Read More

The Pros And Cons Of Genetic Investigations

463 Words | 2 Pages

As companies like Ancestry DNA, 23andMe, and other genetic testing sites are being offering their services to the public, more and more individuals are taking the opportunity to learn more about their ancestry and finding new relative every day -- including the police. Recently, the sacramento police department where able to identify a potential suspect for the Gold State Killer, by using a preserved sample from a rape kit, police were able to create a fake account on a genealogy site. This lead to the arrest of Mr. DeAngelo. In cases like this, it is hard for emotions and opinions to become high strong and spread out across the board.

Read More

Crime Detection Techniques Used In Criminal Cases

550 Words | 3 Pages

Second, every fingerprint has a unique pattern of friction ridges that distinguishes it from other fingerprints. Third, fingerprints share general characteristics that allow a systematic classification, (Souce 1, line 2). Out of the billions people in the world no one yet has shown the same finger print has someone else. In your finger tip there can be as many 175 different types of patterns, that make your finger prints unique. The weakness

Read More

Late 19th Century: Further Advancements With Technology

505 Words | 3 Pages

Authorities used fingerprints typically to prove that a person has handled an item or were present in a certain location. When it comes to solving these, there is actually over one hundred known ways just to develop fingerprints, depending on the surface

Read More

Forensic Testing Essay

1095 Words | 5 Pages

D Assessment DNA technology Forensic testing 24.11.2014 Marius Martinsen 10D Introduction: I have chosen to investigate Forensic testing, it is also known as DNA profiling or genetic fingerprinting. During this essay I will discuss what the disadvantages and what the advantages of forensic testing are. I will also talk about how forensic testing is carried out. Forensic testing is used to identify an individual by using the DNA sequences of that person.

Read More

Myths That Determine The Truth About Roots Of Crime In The Media

520 Words | 3 Pages

Crime Myths Most crimes are solved by fingerprints and DNA. This is a prime example of a crime myth. The truth is less than 1 percent of all serious crimes are solved by DNA, and fingerprints do only slightly better. As mentioned in USA Today titled "Crime and the media: Myths and reality", it discusses some of the important insight to crime in the media causing myths. Another source that covers this topic is in an Irish Times article by O’ Toole, Fintan entitled “Myths that conceal the truth about roots of crime: [CITY EDITION]” it goes over the many aspects that relate to myths that are contributing to the truth about roots of crime.

Read More

Practice Of Fingerprinting

175 Words | 1 Pages

A forensic test that was featured in the episode was the practice of fingerprinting and dusting for fingerprints at a crime scene. Fingerprinting has been used throughout human history as a means of solving crimes. One of the earliest examples of the use of fingerprinting in forensic science was during the Chinese Qin Dynasty, which recognized the importance of handprints as a form of evidence in investigating burglaries. The practice of fingerprinting in forensic science and crime scene investigation made significant progress in the nineteenth and twentieth centuries, when Thomas Taylor of the United States Department of Agriculture suggested in 1877 that bloody fingerprints could be used as evidence in crime scene investigations to determine

Read More

Advantages And Disadvantages Of Fingerprint

897 Words | 4 Pages

Fingerprints are taken as the important measure for uniquely identifying a person. In general there are four types of representations schemes which are used to represent a fingerprint. They are phase image, grayscale image, minutiae image and skeleton image. Among these minutiae templates are safer to be stored in database because they lose many features of original fingerprint, so they cannot be misused. Our project deals with reconstruction of fingerprint image efficiently from minutiae templates.

Read More

Essay On DNA Profiling

1031 Words | 5 Pages

DNA Profiling antithetical to right to privacy. INTRODUCTION The ambit of privacy can get to the extent of your saliva, spit or anything from which your DNA can be traced down. These mentioned things are unintentionally thrown by us and definitely abandoned by us without having any idea of its further use.

Read More

Importance Of Dna In Forensic Science

1251 Words | 6 Pages

DNA in forensic science The majority of cells making up the human body are diploid cells carrying identical DNA, with the exception of haploid gametes and red blood cells. Several types of biological evidence such as blood and hair are commonly used in forensic science, which is the scientific study of evidence for crime scene investigations and other legal matters. Forensic science is used for the purpose of DNA analysis, this is the analysis of DNA samples to determine if it came from a particular individual. DNA analysis is done by obtaining DNA samples from an individual; next, a large sample of DNA is produced from amplified selected sequences from the DNA collected.

Read More

More about The Pros And Consequences Of DNA Fingerprinting

Related Topics

Open Document