In this article we will discuss about the double helix of DNA. On the basis of the evidences available and a knowledge of interatomic distances and bond angles, Watson and Crick proceeded to construct molecular models of DNA. In 1953 they finally postulated a precise, three-dimensional, double helical model which could account for many of […]
Double Helix of DNA | Genetics
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DNA and Genetic Material in Viruses | Genetics
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In this article we will discuss about the evidence that DNA is the genetic material in viruses. Is DNA The conclusion reached by Avery, Macleod and McCarty was not immediately accepted. Some investigators suggested that the DNA preparations contained a mutagen which caused mutation to the S form. Others pointed out that transformation was due […]
Watson-Crick Model of DNA| Genetics
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The Watson-Crick model of DNA has been the basis for further work on DNA replication, mutation and recombination. Much evidence exists to establish the validity of this model. Nevertheless, the model has been scrutinized by other workers, and from time to time other models have been suggested by Wu (1970), Arnott (1968), Wang (1979) and […]
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