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Period: to
Evolution of Genetics
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Cell Theory (Plants)
Mathias J. Schlieden, a German scientist, proposed his cell theory as it applied to plants. -
Cell Theory (Animals)
German scientist Theodore Schwann published his cell theory as it applied ot animals, as opposed to Schleden's plant cell theory. -
"On the Origin of Species" is Published
This is book written by scientist Charles Darwin, and explained units of heredity and variations in species. -
Mendel's Genetics Laws
Geneticist Gregory Mendel of Austria, after years of experimenting with his pea plants, His laws decribe his theories of heredity. -
Discovery of Chromosomes
Walther Fleming,a German biologist, used dyes to stain cells and discovered rods that he called "chromosomes," -
Gene Mutations
Dutch botanist Hugo de Vries publishes on his discoveries of gene mutations. -
Paired Choromosomes
American biologist Walter Stanborough Sutton discoveries that chromosomes are found in pairs that are structurally similar. -
Genes on Chromosomes
American biologist Thomas Hunt Morgan and Alfred H. Sturtevant of the U.S showed that genes were located on the chromosome, discoverred X and Y chormosomes, sex-linked traits, and crossing over. -
Genes Produce Enzymes
US scientists George W. Beadle and Edward L. Tatum discovered that genes control the production of enzymes. -
Genes and Heredity
Brtish scientist Francis H. C. Crick and James D. Watson from the United States made a model of the DNA molecule and proved that genes determine heredity. -
Discovery of the Genetic Code
A combinaton of many scientists discovered the human genetic code, which allowed scientists to predict characteristics by studying DNA and opened up the fields of genetic engineering and genetic counseling.
