Sodium is a chemical element with the chemical symbol Na. It is an alkali metal with the atomic number 11. We know that substances are made up of various atoms, and each atom â¦ has a specific chemical identity. It (an atom) is said to be chemical element, and has all the characteristics of that element.
When used correctly, DNA profiling is a powerful forensic tool. It can be used to quickly eliminate a suspect, saving time in searches for perpetrators. And it can provide compelling evidence to support a conviction and, most importantly, reduce the chances of a wrongful conviction.
This is often critical for forensic analysis, when only a trace amount of DNA is available as evidence (ala CSI). â¢PCR 'fingerprints' methods have high discriminative power and can be used to identify genetic relationships between individuals, such as parent-child or between siblings, and are used in paternity testing. More Applications â¢ PCR may also be used in the analysis of ancient DNA that is tens of thousands of years old.