Deoxyribonucleic acid , more commonly known as DNA , is a complex molecule that contains all of the information necessary to build and maintain an organism. All living things have DNA within their cells. In fact, nearly every cell in a multicellular organism possesses the full set of DNA required for that organism. However, DNA does more than specify the structure and function of living things — it also serves as the primary unit of heredity in organisms of all types. In other words, whenever organisms reproduce, a portion of their DNA is passed along to their offspring. This transmission of all or part of an organism's DNA helps ensure a certain level of continuity from one generation to the next, while still allowing for slight changes that contribute to the diversity of life. Source of info. 1. http://www.nature.com/scitable/topicpage/introduction-what-is-dna-6579978 2. https://ghr.nlm.nih.gov/primer/b...
Have you been trying to understand how genes are inherited? Do you wish to learn how DNA tests are carried out? Or are you interested in learning about how we can manipulate the genes of organisms? Then I can assure you that this is the right place for you.