biology timeline
Category: Other
Updated: 30 Oct 2017
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Created byAshton Oveson
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concept of cell theory articulated by schleiden and schwanncells discovered by Robert hookecell research explodedjansen created 1st compound microscopeleeuwenhoek discovers protozoabrown discovered cell nucleusroelliker discovered sperm and egg are cells toopringshiem observed how sperm penetrates eggVirchow concludes that cells come from cellskoliker describes mitochondriaflemming described chromosome behavior during mitosischromosome theory of heredityGolgi describes Golgi apparatusBehrens separates nuclei from cytoplasm using centrifugationsiemens makes first commercial transmission electron mircoscopegey and co establish continuous human cell lineeagle sysmatically defined nutritional needs of animal cellsdensity gradient centrifugation in cesium
chloride solutions for separating nucleic acids developedCambridge instruments produced first commercial scanning
electron mircroscopetransgenic mice and fruitflies are producedtsien identifies mutant of gfp with enhanced spectral propertiesmice are cloned from somatic cellsHamilton and baulcombe discover siRNA as part
of post-transcriptional gene silencing in plants
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