The Story of photo 51

If DNA is too small to see, how do we know that it is a double helix?

1. What is DNA?

   1. Click on Journey into DNA on this website - http://www.pbs.org/wgbh/nova/photo51/

   2. Watch the animations about DNA.

2. What do “pictures” of DNA look like?

   1. Click on this link and view the pictures. - http://www.pbs.org/wgbh/nova/photo51/pict-01.html#fea_top

3. A woman named Rosalind Franklin took the first pictures of DNA using x-rays. This picture is known as photo 51. But there is more to the story.

4. James Watson and Francis Crick used this photo to discover the structure of DNA

   1. Go to this website to learn more - http://www.dnai.org/a/index.html

   2. Click “putting it all together” to watch a video and play a game.

5. Watson and Crick won a nobel prize for their discovery.

   1. Visit this website to read more about Watson and Crick. - http://nobelprize.org/educational_games/medicine/dna_double_helix/readmore.html

   2. Play the DNA the Double Helix Game. - http://nobelprize.org/educational_games/medicine/dna_double_helix/index.html

6. What about Rosalind Franklin? Should she have won a Nobel prize too?