Difference between revisions of "DNA"
(2 intermediate revisions by 2 users not shown) | |||
Line 1: | Line 1: | ||
− | {{encyclopedia|moderator=Henrik}}DNA (deoxyribonucleic acid) | + | {{encyclopedia|moderator=Henrik}} |
+ | |||
+ | '''DNA (deoxyribonucleic acid)''': the basic chemical structure of the genes. It is formed of four bases, adenine (A), guanine (G), cytosine (C), and thymine (T), a sugar deoxyribose, and phosphate. Its structure was found in 1953 by James Watson and Francis Crick. The smallest unit of DNA is a nucleotide, which consists of one base, one sugar, and phosphate. The base distinguishes the four different nucleotides from each other. Three successive nucleotides form a codon, which is the smallest code word unit of DNA. One codon determines one amino acid (see this) when the message of DNA is translated to a protein. The execution of protein synthesis according to the "blueprint" in DNA is called expression of the gene. First a blueprint is copied to RNA (see this) by transcription and then according to the directions in codons, amino acids are linked to form a protein (see this) chain by translation. | ||
[[category:Dioxin synopsis]] | [[category:Dioxin synopsis]] | ||
+ | <ref>Jouko Tuomisto, Terttu Vartiainen and Jouni T. Tuomisto: Dioxin synopsis. Report. National Institute for Health and Welfare (THL), ISSN 1798-0089 ; 14/2011 [http://www.thl.fi/thl-client/pdfs/81322e2c-e9b6-4003-bb13-995dcd1b68cb]</ref> | ||
+ | |||
+ | |||
+ | ==References== | ||
+ | <references/> | ||
+ | |||
+ | [[op_fi:DNA]] |
Latest revision as of 08:37, 1 June 2011
This page is a encyclopedia article.
The page identifier is Op_en3483 |
---|
Moderator:Henrik (see all) |
Give your opinion to the peer rating of the content of this page. |
Upload data
|
DNA (deoxyribonucleic acid): the basic chemical structure of the genes. It is formed of four bases, adenine (A), guanine (G), cytosine (C), and thymine (T), a sugar deoxyribose, and phosphate. Its structure was found in 1953 by James Watson and Francis Crick. The smallest unit of DNA is a nucleotide, which consists of one base, one sugar, and phosphate. The base distinguishes the four different nucleotides from each other. Three successive nucleotides form a codon, which is the smallest code word unit of DNA. One codon determines one amino acid (see this) when the message of DNA is translated to a protein. The execution of protein synthesis according to the "blueprint" in DNA is called expression of the gene. First a blueprint is copied to RNA (see this) by transcription and then according to the directions in codons, amino acids are linked to form a protein (see this) chain by translation.
[1]