Watson and crick model of dna: DNA is the hereditary

DNA is the hereditary material as it contains the genetic information. It is the most important constituent of a chromosome. The most widely accepted model of DNA is the double helical structure of James Watson and Francis Crick . Watson and Crick used many aluminium templates like this one, which is the single base Adenine (A), to build a physical model of DNA in 1953. When Watson and Crick produced their double helix model of DNA , it was known that most of the specialized features of the many different life forms on Earth are made possible by proteins. Structurally, proteins are long chains of amino acid subunits. In some way, the genetic molecule, DNA , had to contain instructions for how to make the thousands of ... In 1953, J.D. Watson (an American biologist) and F.H.C. Crick (a British Physicist) proposed the three-dimensional model of physiological DNA (i.e. B- DNA ) on the basis of X-ray diffraction data of DNA obtained by Franklin and Wilkins. For this epoch- making discovery, Watson , Crick and Wilkins got Nobel Prize in medicine in 1962. The important features of Watson - Crick model or double helix model of DNA are as follows: 1. The DNA molecule consists of two polynucleotide chains or strands that ... The Watson and Crick model of DNA , also known as the double helix model , is a scientific breakthrough that revolutionized our understanding of genetics. In 1953, James Watson and Francis Crick proposed that DNA has a double helix structure made up of two complementary strands, each consisting of a sugar-phosphate backbone and nitrogenous bases.