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He characterized the different forms of nucleic acid, DNA from RNA, and found that DNA contained adenine, guanine, thymine, cytosine, deoxyribose, and a phosphate group
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Performed the first major experiment that led to the discovery of DNA as the genetic material. He studied two strains of the bacteria Streptococcus pneumoniae, which causes pneumonia. He found that one strain could be transformed into the other form.
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Identified the molecule that transformed the R strain of bacteria into the S strain. Discovered that DNA is the material of which genes and chromosomes are made.
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Analyzed the amount of adenine, guanine, thymine, and cytosine in the DNA of various speices. He found that the amount of guanine nearly equals the amount of cytosine, and the amount of adenine nearly equals the amount of thymine within a species.
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A series of experiments conducted by Alfred Hershey and Martha Chase that helped to confirm that DNA was the genetic material.
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She made critical contributions to the understanding of the fine molecular structures of DNA, RNA, viruses, coal, and graphite. The DNA work achieved the most fame because DNA plays essential roles in cell metabolism and genetics, and the discovery of its structure helped scientists understand how genetic information is passed from parents to children.
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He proposed that the structure of DNA was a double helix and not a triple helix like Linus Pauling proposed.
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Along with James Watson, he discovered the structure of DNA.
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Along with James Watson and Francis Crick he helped discover the molecular structure of DNA
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He proposes that DNA was a triple helix and not a double helix.
