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Since the war , Chargaff and his students had been painstakingly analyzing
various DNA samples for the relative proportions of their purine and pyrimidine
bases . In all their DNA preparations the number of adenine ( A ) molecules was
specificity , since our chemist friends repeatedly told us that the hydrogen atoms
in the purine and pyrimidine bases did not have fixed locations but randomly
moved from one spot to another . Instead , Francis had the feeling that DNA ...
4 A - thick purine and pyrimidine bases were stacked on top of each other in a
direction perpendicular to the helical axis . In addition we could feel sure from
both electron - microscope and X - ray evidence that the helix diameter was
about 20 ...
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LibraryThing ReviewUser Review - tgraettinger - LibraryThing
Wonderful account of the discovery of DNA. Had almost the feel of a detective novel. It's a very easy, quick read. If you can find it, there is a video, "The Race for the Double Helix" aka "Life Story ... Read full review
LibraryThing ReviewUser Review - pramodghuge - LibraryThing
A very personal account by the author James Watson on how he and his colleague Francis Crick with the help of others beat Linus Pauling to win the coveted Nobel prize for identifying the structure of ... Read full review