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Chargaff's rules (given by Erwin Chargaff) state that in the DNA of any species and any organism, the amount of guanine should be equal to the amount of cytosine and the amount of adenine should be equal to the amount of thymine. Further, a 1:1 stoichiometric ratio of purine and pyrimidine bases (i.e., A+G=T+C) should exist. This pattern is ...
Later, Erwin Chargaff(1950) discovered that the makeup of DNA differs from one species to another. These experiments helped pave the way for the discovery of the structure of DNA. In 1953, with the help of Maurice Wilkins and Rosalind Franklin's X-ray crystallography, James Watson and Francis Crick proposed DNA is structured as a double helix. [1]
Erwin Chargaff (11 August 1905 – 20 June 2002) was an Austro-Hungarian-born American biochemist, writer, and professor of biochemistry at Columbia University medical school. [1] A Bucovinian Jew who emigrated to the United States during the Nazi regime, he penned a well-reviewed [ 2 ] [ 3 ] autobiography, Heraclitean Fire: Sketches from a ...
Erwin Chargaff's work in 1950 demonstrated that, in DNA, the bases guanine and cytosine were found in equal abundance, and the bases adenine and thymine were found in equal abundance. However, there was no equality between the amount of one pair versus the other. [3] Chargaff's finding is referred to as Chargaff's rule or parity rule 2. [3]
DragonflyTV (subtitled GPS: Going Places in Science for seasons 5–6, and Nano for season 7) is an American science education television series produced by Twin Cities Public Television. The show aired on PBS Kids from January 19, 2002, to December 20, 2008. It was aimed at ages 9–12. [1]
Explained is an American documentary television series on the streaming service Netflix. The show is produced by Vox Media [2] and is based on Vox's previous YouTube video series which followed a similar format. [3] The show's episodes averaged between 16 and 24 minutes, with each focusing on a different topic. [4]
The show premiered on August 19, 2009, preceded by another CN Real series Bobb'e Says. The show is hosted by three male teenagers (C.J. Manigo, Jackson Rogow, and Ali Sepasyar) who wondered what would happen if some wild event, scheme or experiment were to occur. The three teens attempt to create the event themselves and consult experts ("The ...
Furthermore, Erwin Chargaff also printed a rather "unsympathetic review" of Watson's book in the 29 March 1968 issue of Science. In the book, Watson stated among other things that he and Crick had access to some of Franklin's data from a source that she was not aware of, and also that he had seen—without her permission—the B-DNA X-ray ...