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published his book on nuclein--lead to nucleic acid lateron
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first to detail chromosomal meovements in process of mitosis
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discovered that genes are linked in a series on chromosomes and are responsible for our traits
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chromosomes occur in pairs, which segregate at meiosis
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discovered that women were XX and men were XY
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bacteria can pass genetic information through transformation
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shows how genes control the enzyme that controls metabolic processes
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proved DNA carries genetic information--suggested that DNA may be the gene
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proved that proteins have/follow sequences--the genes & DNA that make up the proteins must have sequences aswell
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determined Chargaff's rules-states that in DNA, A pairs with T and G pairs with C
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took a picture of photo 51-the DNA's double helix shape
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worked with DNA virus called T2 which infects E. Coli
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discovered DNA was made up of 2 chains, each in a helix--one going up, one going down
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took X-rays of DNA to produce images---found the structure with Watson & Crick
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produced the first correct count of chromosomes in human cells
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told how 2 helix strands can make up DNA
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developed a way to join two DNAs together in-vitro (recombinant DNA) it created a new species by putting foreign DNA into a cell
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deciphered a portion of deoxyriboneucleic acid (DNA), which led to the code's unraveling
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discovered enzyme reverse transcriptase
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DNA recombinant engineering on medicine--replicated information from different species
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PCR--polymerse chain reaction