The primary purpose of DNA is to store hereditary information within the cells of all living things. It is a molecule that encodes the genetic instructions used in the development and functioning of all known living orga... More »

DNA works by storing information that tells the body how to develop, survive and reproduce cells. DNA sequences are made up of four types of nucleotides: adenine, thymine, cytosine and guanine. Information in DNA is stor... More »

Deoxyribonucleic acid (DNA) contains the information required for cellular activities such as development and reproduction and can be used to identify relatives through blood testing among other uses. The instructions fo... More » Science Biology Molecular Biology & DNA

DNA replicates in order for cells to divide, withy a parent cell divides giving each daughter cell the full DNA string in each nucleus. Without cell division, an organism cannot grow into a plant, a human or an animal. D... More »

DNA polymerase II is a type of DNA polymerase: a category of enzymes that synthesize identical copies of existing DNA, allowing dividing cells to pass this genetic information on to their daughter cells. DNA polymerase I... More »

Viruses may have DNA or RNA inside of their cells. However, viruses are not living and cannot replicate without the aid of a host organism such as a human. More »

DNA fingerprinting is a forensic process that involves extracting DNA from the nucleus of cells and comparing the tiny differences between DNA found on evidence and any suspects. The technique uses results to prove wheth... More » Science Biology Molecular Biology & DNA