Each person's DNA is unique . DNA biometrics technology is highly unique .The chance of two individuals having the exact same DNA is extremely impossible .Moreover ,DNA biometric technology impossible to fake because each person's DNA contains some unique trait from parents. DNA biometrics technology used in security systems but this technology is still new and it is hardly applied in public.[15]
It can be used in the real world to identify relationships between individuals by determining if two people are related. It could also be used to touch upon heritage from looking at back in generations. DNA fingerprints can also be used to identify a victim and help identify suspects in a crime scene. Lastly it can be used for personal identification. In some places, it requires you to give DNA fingerprints in order to identify a person.
No two people, except identical twins, have identical DNA sequences, which makes DNA testing appealing to law enforcement. Two types of DNA testing include short tandem repeat and variable number tandem repeat. Short tandem repeat requires less DNA compared to variable tandem repeat, which is “useful when a sample has been degraded at the crime scene.” (“DNA Evidence”) Whilst DNA evidence is a useful weapon in solving crimes, it is not infallible; therefore, it needs to be used with caution, especially with partial DNA profile,
DNA allows a person to be recognized through body fluid, hair, and fingerprint samples to be
DNA Fingerprinting, also known as DNA Profiling, is a method used to identify a person using DNA patterns that are specific to him/her. 99.9% of DNA is identical in every human being, but .01% is enough to distinguish between people. It is most commonly used in criminal cases to link a criminal to his/her crime scene, but is also used for paternity/maternity tests, and immigration records. Usually a skin, hair, or body fluid sample is collected from a crime scene or criminal or test candidate, then DNA is extracted and cut using enzymes that recognize patterns in DNA and run through a gel by an electric current in a process called electrophoresis (Annely).
Law Enforcement keep notes on arrests that have founded people innocent of crimes, and retention of an innocent person's DNA can be charge or otherwise, seen as a invasion of that person’s privacy and civil liberties. Dr. Alec Jeffrey, a former professor at the University of Leicester laboratory, consulted with his lawyers to develop the new type of technique called DNA profiling. His technique would prove that DNA fingerprinting (profiling) can individualize evidence compared to the blood typing. DNA profiling compares 13 standard STRs to form a profile. The analysis used by the scientists, uses PCR and STRs to profile an individual. It is highly unlike that two individuals’ identical numbers of repeats for all 13 STRs, will match, which DNA fails is hardly never due to a successful match of 385 million to 1. This makes DNA profiling the most accurate tool in Forensics.
DNA forensics can also narrow down suspect pools, exonerate innocent suspects, and link crimes together if the same DNA is found at both scenes. However, without existing suspects, a DNA profile cannot direct an investigation because current knowledge of genotype-phenotype relation is too vague for DNA phenotyping. For example, a profile from a first time offender that has no match in any database may give the information that the criminal is a left handed male of medium stature with red hair and freckles. It would be impossible to interview every man who fits that description. However, with available suspects, DNA forensics has many advantages over other forms of evidence. One is the longevity of DNA. Although it will deteriorate if exposed to sunlight, it can remain intact for centuries under proper conditions (Sachs, 2004). Because DNA is so durable, investigators can reopen old cases to reexamine evidence.
Due to the uniqueness of DNA it has become a powerful tool in criminal investigations
Human DNA is very similar to one another, but only about 0.1% is different from the next person. That 0.1% can tell a person’s eye color, hair color, and other physical features. DNA analyst are able to take a drop of blood, the size of a dime, and duplicate the number DNA found in that drop. With the ability to duplicate DNA, analysts can have a back-up, in the event a human error were to occur. Analyst can tell you exactly where your ancestors came from and the percentage that is still inside your DNA. DNA is a very powerful tool that can identify a murder if the individual left any blood, saliva, skin tissue, hair or semen. The education needed to be able make use of the DNA consists of a great deal of science classes.
DNA fingerprinting is a technique that is used to determine how likely it is whether genetic material came from a specific person or family group. Since 99% of human DNA is identical, that means that it is only 1% of our DNA which is different, and it is that 1% that we look at when we are attempting to determine the origin of a DNA sample.
Staying on the scientific side of this writing, our DNA is all different. We all have a different DNA to represent who we are. Machines can pick up your fingerprint so
All humans have in common the coding sequences of their DNA, but, unless you are an identical twin, the non-coding sequences of your DNA are like no other person’s on the planet. The bulk of human DNA does not code for specific genes and is highly repetitive. A British geneticist, Alec Jefferies, developed laboratory techniques in 1984 that became known as DNA fingerprinting. These techniques can identify the differences in repetitive nucleotide sequences between individuals, but also show where sequences are the same and, therefore, have been inherited. DNA fingerprinting can be used to detect genetic disorders,
Biometrics technology aims at utilizing major and distinctive characteristics such as behavioral or biological, for the sake of positively indentifying people. With the help of a combination of hardware and specific identifying sets of rules, a basic human attribute, automated biometric recognition mimics to distinguish and categorize other people as individual and unique. But the challenges surrounding biometrics are great as well.
You have seen biometric technology in the films Mission: Impossible and Gattaca. The technology has also graced the covers of many weekly news magazines. But many people, even though the technology has been widely talked about for the last half decade, are still surprisingly unaware of what biometrics are and why the technology is so important for computer security and personal identification.
Like fingerprints, DNA is unique, with the exception of identical twins; no two people have the same DNA. DNA profiling is a technique that can identify the person responsible of a violent
We live in a world today, in which technology moves at a very rapid pace. Many of these technological advances can be used to make our everyday lives easier and safer. One of these new technologies is Biometrics. Biometrics is the process of measuring a person’s physical properties. This would include measuring things like fingerprints, retinas, odor, vein structure on the back of the hand and many other things. Biometrics is a very important topic because it would create better security precautions for certain places that need to be secure. Biometrics will make our society safer by only allowing authorized people out of secure facilities and by keeping the unauthorized people out. Throughout the rest of this