Discoveries in DNA, cell biology, evolution, and biotechnology have been among the major achievements of biology over the past 200 years, with discoveries and insights accelerating in recent 50 years. Consider the progress we have made in these areas of human knowledge. Present at least three of the discoveries you think are most important and describe their significance for society, health, and the culture of modern life. DNA (deoxyribonucleic acid) is a self-replicating molecule or material present in almost all living organisms as the main constituent of chromosomes. It encodes the genetic instructions used in the development and functioning of all known living organisms and many viruses. Simply put, DNA contains the instructions necessary for an organism to develop, survive and reproduce. The discovery and use of DNA has seen many changes and made great progress over the years. James Watson was a pioneering molecular biologist who is credited, along with Francis Crick and Maurice Wilkins, with the discovery of the double helix structure of the DNA molecule. The three won the Nobel Prize in Medicine in 1962 for their work (Bagley, 2013). Scientists use the term “double helix” to describe the two-stranded, sinuous chemical structure of DNA. This shape looks a lot like a twisted ladder and gives DNA the power to transmit biological instructions with great precision. The scientific and medical progress of DNA has been enormous, from identifying our genes that trigger major diseases or creating and manufacturing drugs to treat these diseases. DNA has many significant uses in society, health and culture today. An important area of ​​DNA research is that used for genetic and medical research. Our abi...... half of the document ......rom http://www.dnaforensic.org/index.html.What is Biotechnology?. (n.d.). In the BIO. Retrieved December 29, 2013, from http://www.bio.org/node/517.Clean Air and Water, Green Products. (April 20, 2009). In the BIO. Retrieved December 29, 2013, from http://www.bio.org/node/517.ALCOR. (2013). Cryonics. In the Alcor Life Extension Foundation. Retrieved December 30, 2013, from http://www.alcor.org/.Wolf, A. (2011). What is cryonics?. In the Institute for Evidence-Based Cryonics. Retrieved December 30, 2013, from http://www.evidencebasedcryonics.org/what-is-cryonics/.Watson, S. (2013). How cryonics works. In science how things work. Retrieved December 29, 2013, from http://science.howstuffworks.com/life/genetic/cryonics2.htmBest, B. (n.d.). Cryonics – Frequently asked questions. In Ben Best. Retrieved December 30, 2013, from http://www.benbest.com/cryonics/CryoFAQ.html#_VD_.