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Jansen is credited with the first compound microscope

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Hooke described ‘cells’ in cork.

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Leeuwenhoek discovered protozoa. He saw bacteria some nine years later.

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Schleiden and Schwann proposed cell theory.

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Rudolf Virchow made experiments to prove the 3rd statement of the cell theory.

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CRISPR gene editing is developed, allowing precise RNA-targetted genome engineering.

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Hamilton and Baulcombe discovered siRNA as part of post-transcriptional gene silencing (PTGS) in plants.

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Transgenic mice and fruit flies are produced. Mouse embryonic stem cell line established.

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Mice are cloned from somatic cells.