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 has a specific chemical identity. It (an atom) is said to be chemical element, and has all the characteristics of that element.
Tax season discounts available now. DNA paternity testing determines the biological father of a child. We all inherit our DNA from our biological parents â half from our mother and half from our father. A DNA paternity test compares a childâs DNA pattern with that of the assumed father to determine if there is a match.
DNA Fingerprinting in Paternity Testing. The first official use of DNA fingerprinting as a paternity investigative tool was in. 1985, where it was used to prove that a boy, who was suspected of trying to join his. mother in Great Britain on a false passport, was indeed the biological child of the woman. in question (The Economist, 2004).