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British scientist Robert Hooke handcrafted his own microscope and discovered that objects were made up of particles wihch he called "cells."
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Charles Darwin and Alfred Russel Wallace make the joint announcement of the theory of natural selection-that members of a population who are better adapted to the environment survive and pass on their traits.
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Scientist Walter Sutton pointed out the interrelationships between cytology and Mendelism, closing the gap between cell morphology and heredity.
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Scientist Erwin Chargaff discovered a one-to-one ratio of adenine to thymine and guanine to cytosine in DNA samples from a variety of organisms.
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Francis Crick and James Watson are able to create a 3-dimensional model of the DNA moleculte.
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Dolly the Sheep is cloned; the first time that any living being had been cloned through genetics and it occurred as the result of over three centuries of combined research efforts.
