Описание тега dna-sequence
A string representing the nucleotide sequence of the deoxyribonucleic acid, the molecule that holds the genes that constitute the genetic code.
Deoxyribonucleic acid (DNA) contains the genetic instructions specifying the biological development of all cellular life. DNA consists of two long polymers of simple units called nucleotides.
DNA single chain sequences are commonly represented as a string of uppercase letters that correspond to the nucleotide units in the sequence (A, G, C, T). More seldom, ambiquity codes are also used to specify that several alternative nucleotides are possible in the given position (R - A or G, Y - C or T, see complete table.
A great amount of work in bioinformatics is related with the analysis and comparison of these strings. DNA sequences may be very long or they sets may get very large (gigabytes).
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