Go to the DNA Learning Center and complete the exercise DNA From the Beginning. There will be 41 pages listed for this exercise on the far right of your screen. Study each of these and answer the questions below.

The URL for this exercise is: http://vector.cshl.org/dnaftb/

1. How many traits did Mendel study in pea plants?
2. What was the name of Mendel’s paper he published and what year did he send copies of it to scientists worldwide?
3. What organism did Thomas Hunt Morgan study?
4. What is eugenics?
5. Who demonstrated by experimentation in the 1940’s that DNA is the genetic molecule?
6. Who discovered the three-dimensional structure of DNA in 1953?
7. What is a retrovirus?
8. How do x-rays affect DNA?
9. What is mitochondrial DNA?
10. What is an intron?
11. What are transposons and who discovered them?
12. What is recombinant DNA?
13. A liver cell and a nerve cell in you body has the same DNA.  Why does the liver cell have different structures and functions than a nerve cell?
14. What is a homeobox?
15. When was a rough draft of the human genome project completed?
16. What percent of life stores information in DNA