Frederick Griffith
Frederick Griffith is a scientist that was trying to discover a vaccine for pneumonia. The reason for his experiment was to see if injections of heat killed virulent bacteria would kill the mice. He found that the mixture of live non-virulent bacteria and heat-killed bacteria would kill the mice. The result would be live encapsulated virulent bacteria. This experiment became known as transformation that was named the transforming factor. Along with O.T. Avery at Rockefeller university. He realized that the work that they figured out that from one gene of a species or bacteria cell could be passed on or could be inherited. By his discovery they found that DNA is made up of nucleotides each consisting of a Nitrogen base, a deoxyribose sugar, and a phosphate group. His discovery was slowly recognized. Because of bacteria, they were considered prokaryotes and were considered lower and different. They thought that it was too simple that DNA consisted of only four different nucleotides. In 1952 Alfred D. Hershey and Martha Chase figured out what hereditary information directs the syntheses of n
Rosalind Franklin was I feel the bases of the Watson crick model. It was her data that was used and they put it together to form the model. Without her knowledge Watson and crick would never accomplished what they did without her findings. To this day some people have said that she had nothing to do with the data in the Watson Crick model. Some have said that her work was stolen or plagiarized by Watson and Crick. James Watson and Francis Crick developed the helix structure known as Watson crick model. Presented in 1953 it formed 4 nitrogen bases. Adenine, guanine and thymine and cytosine. Each consisting of one pair of bases. X-ray diffraction photographs of DNA by Rosalind Franklin showed their experiment or data. Linus Pauling in 1950's explained that proteins form in a helix and is held by hydrogen bonds. But later discovered by X ray studies by Rosalind Franklin and Maurice Watkins. They confirmed that it was a giant helix. So Pauling was correct in discovering it was a helix. It was while Friedrich Miescher was working on pus cells at Tubingen in 1869 where he made his fundamental discovery. It was tho
Some common words found in the essay are:
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Approximate Word count = 757
Approximate Pages = 3 (250 words per page double spaced)
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