Name: ______________________
Introduction to DNA
Date:____________
Ms. Chicherchia
Please visit the following link: http://learn.genetics.utah.edu/content/labs/extraction/
Please answer the following questions in FULL AND COMPLETE
SENTENCES using YOUR OWN WORDS. Do no copy word for word off of the website.
1) What are three reasons scientists isolate DNA?
2) What is the first step of DNA extraction?
3) Where is DNA located?
4) Where will you be taking your cell samples?
5) What are the steps of DNA purification?
6) What piece of equiptment will you use to collect cell samples

7)
What does “Lysis” mean?
8) What ingredients does lysis contain?
9) What is the purpose of each ingredient in lysis?
10) What is the purpose of the salt in solution?
11) Why is a tube of water placed in the centrifuge?
12) What is happening inside the centrifuge?
13) Why do you need to invert the tube?

Please use your science background and online resources to answer the following questions:
14) What does DNA stand for?
15) What are the 4 bases found in DNA? (What does each letter stand for)
16) How do the bases pair in DNA?
17) Define “DNA extraction”
19) Who was the first to isolate DNA? What year did it happen?
19) Why is DNA extraction important? What benefits does this technology have?
20) How can we use DNA extraction techniques to make further advances in science and the medical field?