| Since the introduction of DNA testing as evidence in | | | | Warm moist conditions may accelerate DNA |
| 1990, criminal justice system has been improved but | | | | degradation rendering it unsuitable for RFLP in a |
| mistakes and human errors have downplayed the | | | | relatively short period of time. |
| effectiveness of the technology. | | | | PCR-based testing often requires less DNA than RFLP |
| This DNA forensic has undeniably helped in solving | | | | testing and the DNA may be partially degraded, more |
| tough cases and yet, public awareness of the | | | | so than is the case with RFLP. However, PCR still has |
| information is only surface touching depth. | | | | sample size and degradation limitations that |
| Forensic identification tests can link the DNA | | | | sometimes may be under-appreciated. |
| segments to each individuals existing. | | | | PCR-based tests are also extremely sensitive to |
| Examples of DNA uses in the field include | | | | contaminating DNA at the crime scene and within the |
| identification of potential suspects whose DNA | | | | test laboratory. |
| maybe match leftovers at crime scenes, | | | | During PCR, contaminants may be amplified up to a |
| establishment of paternity and family relationships of | | | | billion times their original concentration. Contamination |
| victims whom could not be recognized based on their | | | | can influence PCR results, particularly in the absence |
| outlooks and matching organ donors with recipients in | | | | of proper handling techniques and proper controls for |
| transplant programs. | | | | contamination. |
| The selected interesting cases of DNA forensic | | | | PCR is less direct and somewhat more prone to error |
| identification involve the DNA Shoah Project, | | | | than RFLP. However, PCR has tended to replace |
| identification of the 911 and South East Asia 2004 | | | | RFLP in forensic testing primarily because PCR based |
| Tsunami victims and others. | | | | tests are faster and more sensitive. |
| There have been two main types of forensic DNA | | | | Science cannot yet provide conclusive results on |
| testing. They are often called; RFLP and PCR based | | | | genetics and behavior. Discovering more about |
| testing, although these terms are not very | | | | ourselves to the basic components can reveal much |
| descriptive. | | | | more about us. |
| Generally, RFLP testing requires larger amounts of | | | | Blood group, originality, race, allergies, genetic |
| DNA and the DNA must be under graded. | | | | dominance and other elements just showed that we |
| Crime-scene evidence that is old or that is present in | | | | are fascinating creatures to exist on earth. |
| small amounts is often unsuitable for RFLP testing. | | | | |