1. What is the structure (shape) of DNA scientifically called?

2. What are the rungs (steps) of the DNA ladder called?

3. Which of the following are not a part of the DNA Sugar, Phosphate, Protein, Base?

4. What is the complementary Strand of ATTCCG?

5. Base pairs are only connected to ___________?

6. There is about _____ ft of DNA in every human cell.

7. The human DNA strand is about ____ billion base pairs (letters) long.

8. Who is the scientist that discovered which base pairs are always connected together?

9. A = _____

10. C = ____

11. When DNA gets copied, what is the minimum number of letters it takes to make a mistake/disease?

12. List the three types of DNA mistakes?

13. During a deletion mutation, what happens?

14. During a insertion mutation, what happens?

15. During a substitution mutation, what happens?

16. Find the mistake, identify what type it is? AATACCG TTTTGGC

17. Find the mistake, identify what type it is? AATACCG TTATTGGC

18. Find the mistake, identify what type it is? AATACCG TTATGC

19. What do the letters GMO stand for?

20. ________ foods do not have any GMO’s in them.

21. How do GMO’s help farmers in other countries?

22. In what ways are GMO fruits and vegetables better than non-GMO’s?

23. In the US and Canada, GMO’s are not _________ on food packages and the general public is not really aware that are foods contain GMO’s?

24. There are unknown health problems/concerns associated with the introduction of GMO’s into our foods, list any 2 concerns.

25. GMO’s plants are designed to resist ________ and have the ability to grow with less __________ than normal plants need.

26. Draw all the parts of a DNA strand (include sugars, phosphates, and the complementary strand) that has the base pairs CAT.