Download Bellwork

Bellwork: Number your Bellwork 1-11 and fill
in the blanks.
2. _________
____________
What type of
biomolecule is
DNA?
What is the
monomer?
What type of
bonds hold the
bases together?
1. ___ ___ ___
Deoxyribonucleic
Acid
4. _________
Nitrogenous
7. __________
3. _________
bonds
8. _________
9. _________
5. __________
6.__________
(5-carbon sugar)
11. _________
10. _________
2. Nucleic
Acid
What type of
biomolecule is
DNA?
What is the
monomer?
What type of
bonds hold the
bases together?
1. DNA
Deoxyribonucleic
Acid
4. Nucleotide
Nitrogenous
7. Base
5. Phosphate
Group
6. Deoxyribose
(5-carbon sugar)
11. Thymine
3. Hydrogen
bonds
8. Adenine
9. Guanine
10. Cytosine
Essential Question:
How did scientist
discover the
structure of DNA?
Crick, Watson, and Franklin: The
Race to Discover the Structure of
DNA
-By Cynthia Stokes Brown
1. Read the article
2. Read to each circled number
and answer the question on
the handout in complete
sentences.
3. If there are 3 lines – then 2
complete sentences. If there
are 6 lines – then 5 complete
sentences. If there are 5 lines
– then 4 complete sentences.
Theory of Relativity / Atomic Bomb
X-ray crystallography
Rosalind Franklin / Watson & Crick
Franklin’s X-ray image
Watson & Crick’s DNA model
Let’s build a
DNA
molecule….
DNA Origami
• The bases on the right (from top to bottom) are:
GAGCAGTGTGT.
• The bases on the left (from top to bottom) are:
CCTCGTCACAC
• You need to find the complementary base pair
• Remember to color on the diagonal (as shown below)—only
do half, the other half is the complementary base pair
G
A
T
C
The colors are
not correct, so
use the key on
the previous
slide. But put
the “letters” in
the correct spot,
color the correct
diagonal, and
cut out the
square.
DNA Model Questions
• What are the 3 components in a nucleotide?
• What are the components of the DNA
backbone?
• How many A bases are in your model? Is the
number of T bases the same or different?
Why?
• What kind of bond holds the bases together?