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microsatellite DNA

biochemistry
Also known as: STR, simple tandem repeat

Quick Summary

Microsatellite DNA refers to short segments of DNA found throughout the genome. These segments consist of repeated sequences, typically two to five nucleotides long, and are known for their variability among individuals.1

These repetitive sequences are a type of genetic marker, meaning they can be readily detected and used to identify individuals, populations, or species. While they don't directly contribute to gene function, their unique patterns make them valuable in various applications.23

Microsatellites are a form of simple sequence length polymorphism (SSLP) and are also known as short tandem repeats (STRs). Their variability allows for their use in techniques like DNA fingerprinting, which has applications in forensics and paternity testing. Although their exact function is not fully understood, they are a significant component of eukaryotic genomes.234

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