BIO152H5 Lecture Notes - Lecture 9: X-Ray Crystallography, The Double Helix, Francis Crick
Document Summary
Dna, the molecule of inheritance, is the most celebrated molecule of our time. Hereditary information is encoded in dna and reproduced in all cells of the body. This dna program directs the development of biochemical, anatomical, physiological, and (to some extent) behavioural traits. In 1953, james watson and francis crick introduced an elegant double-helical model for the structure of deoxyribonucleic acid, or dna. Dna is copied during dna replication, and cells can repair their dna. Building a structural model of dna: scientific inquiry. After dna was accepted as the genetic material, the challenge was to determine how its structure accounts for its role in heredity. Maurice willkins and rosalind franklin were using a technique called x-ray crystallography to study molecular structure. Rosalind franklin produced a picture of the dna molecule using x-ray crystallography. Franklin"s x-ray crystallographic images of dna enabled watson to deduce that.
