Historical overview of cell biology Flashcards | Quizlet
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Historical overview of cell biology

Terms in this set (20)

First microscope Zacharias Janssen
1590
Robert Hooke coined the term cell
1665
Antony van Leeuwenhoek another type of microscope
1670
What year did Brown describe the cell nucleus in cells of the orchid?
1833
When did Schleiden and Schwann propose cell theory?
1838
Year Albrecht von Roelliker realized that sperm cells and egg cells are also cells.
1840
Year N. Pringsheim observed how a sperm cell penetrates an egg cell.
1856
Kolliker described mitochondria.
1857
Year Rudolf Virchow (physician, pathologist and anthropologist) expounds his famous conclusion: omnis cellula e cellula, that means cells can develop only from existing cells [cells come from preexisting cells]
1858
Flemming described chromosome behavior during mitosis.
1879
Germ discovered that cells are haploid (chromosomal theory of heredity).
1883
Golgi described the golgi apparatus.
1898
Siemens produced the first commercial transmission electron microscope.
1939
Gey and co-workers established a continuous human cell line.
1952
Eagle systematically defined the nutritional needs of animal cells in culture.
1955
Meselson, Stahl and Vinograd developed density gradient centrifugation in cesium chloride solutions for separating nucleic acids.
1957
Ham introduced a defined serum-free medium. Cambridge Instruments produced the first commercial scanning electron microscope.
1965
Sato and colleagues publish papers showing that different cell lines require different mixtures of hormones and growth factors in serum- free media.
1976
Transgenic mice and fruit flies were produced. Mouse embryonic stem cell line was established.
1981
Mice were cloned from somatic cells.
1998
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