What is a short tandem repeat (STR)? How are short tandem repeats used in forensics?
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These repeats can vary in the number of times the sequence is repeated, which makes STRs highly polymorphic and useful for genetic analysis. Show more…
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What is a short tandem repeat? How are short tandem repeats used in forensics?
Short tandem repeats (STRs) in DNA are often used in forensic analysis and for determining paternity. What characteristic of STRs makes them useful for these practices? Every racial and ethnic group has inherited different short sequence variations in DNA that are repeated in tandem. These sequences are acted upon differently by natural selection in different environments. The sequence of DNA that is repeated varies significantly from individual to individual. The number of repeats is highly variable from person to person or animal to animal.
Adi S.
In order to distinguish the DNA of one person from another, scientists often rely on the presence of short tandem repeats (STRs). These consist of short DNA sequences that are repeated many times in a row. Why are STRs useful for identification
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