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He injected mice with a deadly strain of a of nmonia and that had been killed by heat and a rough type in nmonia which caused the rat to die because the nmonia to kill the rat.
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THe year was 1944 but the day was not known. HE discovered that nucleic acid DNA stores and transmits genetic information.
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He helped discover that DNA is a double helix and chargaffs rule.
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She found out that you are able to look at DNA using X-ray difraction.
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THey used many experiments to prrove that dna is genetic material.
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THey found the structure of the DNA and it went with acordanace of Chargaffs rule.
