Oswald T. Avery: Macleod-Mccarty

Avery-MacLeod-McCarty: In the 40’s genes were classified as a separate element of heredity that generates a metabolic function controlled by enzymes. It was also thought that genes were proteins. Experiments by Oswald T. Avery in 1944 explained that nucleic acid and deoxyribose acid previously known as the organisms ubiquitous turned out to be the chemical basis for heritable changes in the bacteria. Oswald Avery was a immunochemist in a hospital named The Hospital of the Rockefeller institute, which was for medical research. He worked for a long time with causes of pneumonia such as pneumococcus and bacterium. He and other scientists in 1928 were surprised to see the result of an experiment with microbes. They injected mice with a harmless

However it did excited some and inspired further research at the nature of DNA. Such as the relative composition or bases that contain DNA, also X-ray studies and its structure. Francis Crick and James Watson Were in England in 1953 when they discovered DNA contained a two of a kind sequences of complementary bases. Encodes in genes are ordered by DNA.

Hershey-Chase: Scientists Alfred Hershey and Martha Chase did an experiment in 1952. this experiment was named the “Hershey-Chase Experiment”. During this time period most people did know DNA in a protein (which is called a capsid) was a virus. They also knew that viruses could replicate by taking over a host cell through its metabolism function. Through this they would create more viruses. Most people believe that all of the viruses that enter our body make us ill. Viruses also infect other organisms such as plants and all sorts of animals they can also infect certain bacterias. Bacteriophage is the virus that goes and can