In
the present age of science and technology capabilities are highly
developed and developing countries, especially with the introduction of a
person's identity through DNA examination or research. If
we look at the victims of the accident victim's body or body that are
hard to recognize, then the medical team identified through DNA
Deoxyribonucleic acid, better known as DNA (English: deoxyribonucleic acid), is a type of nucleic acid biomolecules belonging to the main constituent of the dry weight of each organism. Inside the cell, DNA is generally located in the cell nucleus.
Deoxyribonucleic acid, better known as DNA (English: deoxyribonucleic acid), is a type of nucleic acid biomolecules belonging to the main constituent of the dry weight of each organism. Inside the cell, DNA is generally located in the cell nucleus.
DNA is a polymer consisting of three main components,
phosphate groups
deoxyribose sugar
nitrogenous bases, consisting of: [1]
Adenine (A)
Guanine (G)
Cytosine (C)
Thymine (T)A monomer unit of DNA consisting of three components called nucleotides, so that the DNA belonging to a polynucleotide.The process of DNA replication is a complex process, but carefully. The synthesis of new DNA chains have a mechanism that prevents the occurrence of inclusion errors monomer which can be fatal. Because the mechanism is the possibility of the synthesis error is very small.
The use of DNA technology
DNA in forensic
Forensic scientists can use DNA located in blood, semen, skin, saliva or hair left at the crime scene to identify possible suspects, a process called genetic fingerprinting or DNA pemprofilan (DNA profiling). The relative lengths of DNA pemprofilan the repetitive DNA such as short tandem repeats and minisatelit, were compared. Pemprofilan DNA was developed in 1984 by British geneticist Alec Jeffreys of Leicester University, and was first used to convict Colin Pitchfork in 1988 in the Enderby murders case in Leicestershire, England.
Through DNA research helped investigators solve old cases where the offender is unknown and only a DNA sample obtained from the scene. This method is one of the most reliable technique to identify a perpetrator, but not always perfect, for example if no DNA can be obtained, or if the scene is contaminated by DNA from many people.
DNA in computation
DNA plays an important role in computer science, both as a matter of research and as a way of computing.Research in string searching algorithm, which finds occurrences of the sequence of letters inside a larger sequence of letters, was motivated in part by DNA research, where algorithms are used to search for a specific sequence of nucleotides in a sequence that great. In other applications such as text editors, even simple algorithms for this problem usually suffice, but DNA sequences cause these algorithms to exhibit near-worst-case due to the small number of different characters.
Database theory has also been influenced by DNA research, which has a special problem to place and manipulate DNA sequences. Database research devoted to genomic DNA database called, dams must address a number of unique technical challenges associated with benchmarking operations roughly, sequence comparisons, look for a repeating pattern, and homology search.
