qacrawler
07-05-2006, 04:15 AM
Since we do not look at the entire DNA molecule and only look at a small portion, we apply a frequency statistic on the genetic loci (locations) that were observed in order to give us a statistical measure of how often we could expect the observed genetic pattern or profile. In other words, we attempt to report statistically how frequent or rare it would be to randomly encounter the questioned genetic profile (or pattern) at all of the genetic areas tested. This type of estimation is very similar to various statistical measures many of us may use in our daily lives, such as knowing that the frequency of obtaining a heads when a coin is flipped would be 1 in 2; or obtaining a six on a six-sided die would be 1 in 6.
