DYS (DNA)

DYS is short for DNA Y-chromosome Segment, and is used to designate a segment of DNA on the Y chromosome where a sequence of nucleotides repeats. These sequences are known as short tandem repeats (STRs), and are called markers in genealogical DNA testing. The possible variations of repeats at a DYS marker are known as alleles.

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DYS is often proceeded by the number sign (#), so the location 455 may be written as DYS455, DYS 455, DYS#455, or DYS# 455.

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DNA: :For other uses, see DNA (disambiguation)....

Y chromosome: The Y chromosome is one of the two sex chromosomes in humans and most other mammals (the other is the X chromosome). The sex chromosomes are one of the 23 pairs of human chromosomes. The Y chromosome spans about 50 million base pairs (the building blocks of DNA) and represents between 0.5 and 1 perc...

Nucleotide: A nucleotide is a monomer or the structural unit of nucleotide chains forming nucleic acids as RNA and DNA. A nucleotide consists of a heterocyclic nucleobase, a pentose sugar (ribose or deoxiribose), and a phosphate or polyphosphate group. Nucleotides also play important roles in cellular energy t...

DYS (DNA) related Images and Photos (experimental)

DNA	DNA & RNA	DNA Portrait	DNA Dog Toy
Dna Surface Molecular Model	Dna Molecular Model in Front of a Multicolored Dna Gel Profile	Bacterial Dna Spilling from E. Coli	Dna Fingerprinting or Blood Testing
Ben 10 Ultimate Alien DNA Alien Heroes Wave 2 Set	Ben 10 Ultimate Alien DNA Alien Heroes Wave 1 Set	Ben 10 Alien Force DNA Alien Heroes Figures Wave 1 Case	Representation of Segment of DNA Molecule Whose Order Spells Out Exact Set of Genetic Instructions