Download The structure of DNA

The structure of DNA
Name: _______________________________
1. What are the building blocks of starch, cellulose and complex sugars?:
2. Write the formula for ______________________ in the space below:
3. What are the building blocks of proteins?:
4. How many of these building blocks of proteins are naturally occurring? ___________
The packaging of DNA
The structure of DNA- video
5.
What are the building blocks of DNA (and RNA)?
6. What are the four major building blocks of DNA?
7. Label the structure of a nucleic acid
8. Label the phosphate group (p-group), the deoxyribose (sugar) and the nitrogenous bases
(bases) shown in the molecule below:
9. What do the dashes ------------ indicate?
10.Are these strong or weak bonds?
11.Which bond do you think is stronger in the molecule above? Circle your answer below:
C and G
T and A
Explain your answer.
Chargaff’s rules:Video
12.What are Chargaff’s rules
13.Based on Chargaff’s rules, the DNA molecule is complementary. That means that if you know
half of the code that you can determine the other half based on the base-pairing rules.
Try it below:
G
A
T
T
A
C
A
14. Are Chargaff's ratios universal for all forms of life?
Fungi?
Protists?
Animals?
Bacteria?
Plants?
Groot?
15. Does the balance (percent) of A-T pairs and C-G pairs varies between species?
______________________
The structure of the DNA molecule: presented by James Watson
16.By the way, who is James Watson? Why was he famous in the science community?
17.Who else helped him understand and “discover” the structure of DNA? (419)
18.Demonstrate your understanding of the DNA Molecule by building one using paperclips.
In your model:
(A)denine = yellow paperclip
(T)hymine = blue paperclip
(C)ytosine = red paperclip
(G)uanine = green paperclip
19. The following nucleotide sequence is the partial sequence that codes for the
hemoglobin protein.
 What does your hemoglobin do?
Do you want to do the whole sequence???...1,600 bps!!
Below is half of the partial genetic code for the hemoglobin protein, use your
understanding of DNA to make a complete DNA model, add some twists to make the
famous “double helix”….

CACCTGGACTGAGGACTC
Official stamp for doing this.