Download DNA Structure

DNA STRUCTURE
Nucleotides are made of….
Phosphate
Sugar
Nitrogen Base
The sugar in DNA is…
Deoxyribose
Nitrogen Bases-DNA
Thymine
Adenine
Guanine
Cytosine
Scientists to Know
Pg. 255
Rosalind Franklin (4th Paragraph)
-What did she study?
-What did the photos suggest?
Watson and Crick (Last Paragraph)
-What did Watson observe?
-What did he immediately know?
-What did Watson and Crick complete? What year?
Chargaff (2nd Paragraph)
-What did he find?
-Give an example
-What is Chargaff’s rule?
Rosalind Franklin
• Studied x-ray diffraction to determine the
structure of DNA
Chargaff’s Rule
Base pairing rule A-T C-G
DNA Replication
Top of Pg.257
- Each cell needs to pass exact ______ of DNA
to ________ cells (when cells divide).
- Each strand can be used to make the other
________.
- This is referred to as __________.
- Example: (Please write the complementary strand
to): TTAGACGTA
DNA replication
• http://www.youtube.com/watch?v=teV62zr
m2P0 (Pre-AP)
• http://www.youtube.com/watch?v=zdDkiR
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