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- Gregor Mendel (mid-1800's)
- European monk
- Experimented with pea plants
- "Father of Genetics"
- Reported results at a meeting in 1865 and published results in
1866; scientific peers considered his work to be unimportant
- His work was rediscovered in 1900 (by: Hugo deVries, Carl Correns,
and Erich Tschermak)
- Mendel's Conclusions
- - Organisms inherit traits in pairs - one trait from each
- - Some traits are dominant and some traits are recessive.
- - Dominant traits express themselves when the dominant gene
is present, and the recessive traits stay hidden.
- - Recessive traits only express themselves when the dominant
gene is absent.
- Walther Flemming (1882)
- German biologist
- Discovered chromosomes
- Karl Correns (1900)
- German botanist
- Discovered incomplete dominance - a case that in some gene
pairs neither gene is dominant nor recessive (the genes work together
producing a blended or mixed trait)
- Worked with four-o-clock flowers (red X white = pink)
- Walter Sutton (1902)
- American graduate student
- Discovered where genes are in a cell (used a grasshopper!)
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14, 2000 by: Glen
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