Have anybody compared your appearance with your mom or dad? Why do they say so? Let's learn and try to find out some interesting facts behind this. DNA (Deoxyribonucleic acid)is the hereditary material that is present in a unicellular organism to a complex organism such as a human being and it carries the genetic instruction in all living beings. Characters from parents are passed to offspring with the help of DNA and thus everyone says that you look like your father and mother. In scientific language, we all inherit half of our DNA instructions from our mom and half from our dad. Interesting fact: Carls berg saw DNA for the first time and then Watson and Crick gave the double helix model. Adenine forms a hydrogen bond with thymine and guanine forms a triple hydrogen bond with cytosine. Structure : It can be thought that DNA looks like a twisted ladder. It is described as a double-helix. Chromosome helps to keep DNA stable at the time of cell replication. The double helix...