Your body is made of cells -- but how does a single cell know to become part of your nose, instead of your toes? The answer is in your body's instruction book: DNA. Joe Hanson compares DNA to detailed manual for building a person out of cells -- with 46 chapters (chromosomes) and hundreds of thousands of pages covering every part of you.
Cold Spring Harbor Laboratory (CSHL) is a private, not-for-profit research and education institution at the forefront of molecular biology and genetics. http://www.dnaftb.org/
1953 was an annus mirabilis for science. Here are five classic papers from Nature that describe and provide evidence for the double helix being the structure of DNA, and one from The Journal of Experimental Medicine that has been described as the "defining moment in nucleic acid research." http://www.nature.com/nature/dna50/archive.html
Here is an incredible picture of unlinked DNA under the electron microscope. http://www.fidelitysystems.com/Unlinked_DNA.html
Deoxyribonucleic acid (DNA) molecules are informational molecules encoding the genetic instructions used in the development and functioning of all known living organisms and many viruses. Along with RNA and proteins, DNA is one of the three major macromolecules that are essential for all known forms of life. http://en.wikipedia.org/wiki/DNA
Educator Joe Hanson's blog about science http://www.itsokaytobesmart.com/
Joe Hanson's twitter https://twitter.com/jtotheizzoe