This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: The Watson-Crick Model of DNA structure • DNA is a helix of 2 nucleotide strands • Complementary base pairs hold the 2 nucleotide strands together • Complementary strands run in opposite directions Base Pairing in DNA • Chargaffs rule o A-T o G-C • Adenine and thymine always form pairs o 2 H bonds • Cytosine and Guanine always form pairs o 3 H bonds X-ray Diffraction of DNA • Maurice Wilkins and Rosalind Franklin knew that DNA formed some sort of helic by the pattern seen in X-ray diffraction The Discovery of DNA •...
View Full Document