dna

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DNA

n. scientifically, deoxyribonucleic acid, a chromonal double chain (the famous "double helix") in the nucleus of each living cell the combination of which determines each individual's hereditary characteristics. In law, the importance is the discovery that each person's DNA is different and is found in each living cell, so a hair, blood, skin or any part of the body can be used to identify and distinguish an individual from all other people. DNA testing can result in proof of one's involvement or lack of involvement in a crime scene. While recent DNA tests have proved a convicted killer on death row did not commit a crime and resulted in his release, current debate concerns whether DNA evidence is scientifically certain enough to be admitted in trials. The trend is strongly in favor of admission.

dna

noun authentication, certification, confirmation of identity, proof of identity, scientific evidence, scientific means of designation, scientific means of identity, scientific means to distinguish a person, scientific method to reveal identity, substantiation, validation of identity, verification of identity, deoxyribonucleic acid
Associated concepts: appeal of a case, DNA fingerprint, DNA polymerase, forensics, overturning a case, reversal of a case

DNA

abbreviation for deoxyribonucleic acid, a chemical which is found in virtually every cell in the body and which carries genetic information. Except for identical twins, each person's DNA is unique. DNA profiling doesn't allow the examination of every single difference between people's DNA so the concentration will be on those aspects which are most likely to yield a difference. DNA can be extracted from any cells that contain a structure called the nucleus, for example, blood, semen, saliva or hair.

Mitochondrial DNA is inherited only from a person's mother. Brothers and sisters have the same mitochondrial DNA type as their mother. This feature of mitochondrial DNA can be used for body identification. The γ-chromosome is present only in men and is largely unchanged as it passes through the male line of a family. The usefulness of the technique in criminal matters is vastly enhanced by the extent to which it is possible to compare a sample with other individuals. To this end there is a National DNA Database maintained by the ASSOCIATION OF CHIEF POLICE OFFICERS and managed by the FORENSIC SCIENCE SERVICE. Techniques vary. There is a UK offence of DNA theft. It is also of assistance in paternity matters.

References in periodicals archive ?
Blocking two tiny molecules of ribonucleic acid (RNA)--a chemical cousin of deoxyribonucleic acid (DNA)--appears to suppress the abnormal growth of blood vessels that occurs in degenerative eye disorders.
Noble added that Pakistan was providing the Deoxyribonucleic Acid (DNA) to the Interpol, which would be checked by the global data of the 187 countries maintained by the Interpol.
The class, co-sponsored by OMRF and the Oklahoma District Attorneys Council, provided the prosecutors with a hands-on opportunity to learn about deoxyribonucleic acid (DNA), the genetic material that has transformed the criminal justice system.
Food-poisoning victims have usually felt relieved when told that not all common bacteria make humans extremely sick, only the strains that have integrated the Shiga gene into their deoxyribonucleic acid (DNA).
In particular, they are much more compatible with the theory of an early RNA (ribonucleic acid) world, where early life on Earth was composed of RNA, rather than deoxyribonucleic acid (DNA).
The testing is based on the analysis of genetic material between two people (for example: a child and alleged father) Deoxyribonucleic acid (DNA) is every persons genetic "blueprint" Half of their DNA is inherited from their mother and half from their father.
The secondary award of the prize will go to Taro Nishinaka, 31, for his research into the composition of deoxyribonucleic acid (DNA).
The microbes' genes and other deoxyribonucleic acid (DNA) are, for research purposes, transferred into other organisms--such as a harmless laboratory strain of Escherichia coli (E.
Telomerase is an enzyme that controls the lengths of deoxyribonucleic acid (DNA) at the ends of chromosomes, called telomeres.
These beings arrived on our planet over 25,000 years ago and, thanks to their perfect mastering of genetic engineering, created all life on earth, be it plant or animal and then proceeded to finally create Man in their image and in their resemblance, thanks to deoxyribonucleic Acid (DNA) as written in Genesis 1-26.
The organization offers consumers a non-GMO choice for organic and natural products that are produced without genetic engineering or recombinanat deoxyribonucleic acid (DNA) technologies.
Researchers have observed that when cells divide, the cells can use some of the carbon 14 to build deoxyribonucleic acid (DNA), a phenomenon that serves as a birthmark for new cells.

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