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 ?
around -70AC to -80AC and below) are used for prolonged storage of biomedical samples such as deoxyribonucleic acid (DNA), ribonucleic acid (RNA).
In a statement to Saudi Press Agency (SPA), he said the body's remains were handed over to forensic medicine which confirmed that the body's remains are for Lama bint Ayed bin Rashid Al-Rouqi after examining Deoxyribonucleic acid (DNA) tests on 15/3/1435H.
Her discovery of the structure of DNA or deoxyribonucleic acid helped her colleagues understand how genetic information is passed from parents to children.
Among other problems, he flubbed the basic chemistry, proposing a structure for deoxyribonucleic acid that wasn't an acid.
KARACHI: Council of Islamic Ideology (CII) of Pakistan yesterday rejected the Deoxyribonucleic acid (DNA) test as primary evidence in rape cases, though it could be accepted as supportive or secondary evidence.
Deoxyribonucleic acid, the blueprint of evolution, is arguably the world's most famous molecule.
com website the DNA, or deoxyribonucleic acid, contains all the genetic information about a person and is unique to each individual person.
Deoxyribonucleic acid (DNA) is a molecule encoding the genetic instructions used in the development and functioning of all known living organisms and many viruses.
The topics include a band energy structure arrangement for organic solar cells with metalized deoxyribonucleic acid strands on an anode electrode, the large-scale deposition of transparent conducting oxides by hollow cathode sputtering, the cost effective fabrication of wafer scale nanoholes for solar cells applications, pushing the material boundaries in sliver solar cell technology, and a comparative study of the manufacturability of selective emitter and double printing on mono-silicon photovoltaic cells.
HIV, which causes acquired immunodeficiency syndrome (AIDS), affects the body's immune cells known as CD4+ T cells and inserts itself into the host cell's deoxyribonucleic acid (DNA).
In the human body genetic information is encoded in double-stranded deoxyribonucleic acid building blocks, the so-called DNA.
Quiz of the Day ANSWERS: 1 Steve Collins; 2 The Beach Boys; 3 Iona; 4 Kendal; 5 The scientific study of death; 6 Spree (from the word 'spreath'); 7 Secret agent; 8 A type of salamander found in north and central America; 9 Sir Don Bradman; 10 Deoxyribonucleic acid.

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