biology daily - the biology and biochemistry encyclopedia
biology daily articles and research Encyclopedia Dictionary Forums biology research links Weblinks Pictures Articles Blogs Newsletter

DNA sequence

(Redirected from Genetic sequence)


A DNA sequence (sometimes genetic sequence) is a succession of letters representing the primary structure of a real or hypothetical DNA molecule or strand, The possible letters are A, C, G, and T, representing the four nucleotide subunits of a DNA strand (adenine, cytosine, guanine, thymine), and typically these are printed abutting one another without gaps, as in the sequence AAAGTCTGAC. This coded sequence is sometimes referred to as genetic information. A succession of any number of nucleotides greater than four is liable to be called a sequence. With regard to its biological function, which may depend on context, a sequence may be sense or anti-sense (see DNA), and either coding or noncoding. DNA sequences can also contain "junk DNA".

See also



07-14-2008 23:18:10
The contents of this article are licensed from Wikipedia.org under the GNU Free Documentation License. How to see transparent copy
BiologyDaily.com 2005. Legal info   Privacy