DNA+group+class+project+LR

__**short tandem repeat**__: - a class of polymorphisms STR occurs when a pattern of 2 or more nucleotides are repeated and the repeated sequences are directly adjacent to each other. The pattern can range in from 2 to 10 base pairs. - No 2 or more people have the same number of repeats in their 13 strands. - The FBI uses a standard set of specific STR regions of CODIS. A software program known as DOCIS operates local, state and national databases of DNA profiles from convicted offenders, missing persons and unsolved crime scene evidence. There is a very small change that 2 individuals would have the same repeat sequence in their 13th DNA chains.