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Dec 11, 2006 · The book is logically divided into 3 sections describing theory and basic principles of gene cloning and DNA analysis (Part I), and their applications in research (Part II) and biotechnology (Part III).
- Michael N. Romanov
- 2006
Feb 26, 2003 · DNA analysis supports the view that early humans moved out of Africa less than 100,000 years ago to colonise the world.
Mar 5, 2010 · The comparative and evolutionary analysis of molecular data has allowed researchers to tackle biological questions that have long remained unresolved. The evolution of DNA and amino acid sequences can now be modeled accurately enough that the information conveyed can be used to reconstruct the past.
- Diego San Mauro, Ainhoa Agorreta, Ainhoa Agorreta
- 2010
Scientists collected evidence and shared findings to develop a model to describe the structure of DNA. Rosalind Franklin’s team in London used X-rays to produce an image of a DNA molecule in1952. Maurice Wilkins from Franklin’s group showed the picture to James Watson from Cambridge.
By using radioactive labels that would integrate specifically into either DNA or protein, but not both, Hershey and Chase were able to show that DNA is the only material transferred directly...
In its impact on biology, the discovery of the DNA structure in 1953 by Watson and Crick is rivaled only by Darwin’s and Wallace’s ideas on evolution and by Mendel’s discovery of the basic laws...
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1920s – Phoebus Levene discovers nucleotides – the combination of a sugar, base and phosphate group – and suggests they form short lengths of DNA called ‘tetranucleotides’. 1937 – Florence Bell arrives in William Astbury’s lab and takes the first X-ray images of DNA.