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These two scientists announced their theory based on the fact that individuals in a population who adapt better in their environment will survive. These individuals will then pass on these traits to the next generation. This theory is known as the Theory of Natural Selection.
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Scientist Charles Darwin published his book called The Origin of Species. This book emphasized that organisms gradually evolve through a process he called "natural selection." In natural selection, organisms with genetic variations that suit their environment tend to propagate more descendants than organisms of the same species that lack the variation, thus influencing the overall genetic makeup of the species.
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Gregor Mendel was an Austrian monk and is known as the "father of modern genetics."
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These two scientists discovered that the genetic patter of sex chromosomes XX meant female and XY meant male.
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Herman Muller used Drosophilia to show that x-rays could cause genetic mutations
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Oswald Avery discovered nucleic acids and their role in bacterial transformation. Purified a substance which he later found out was in fact DNA.
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Erwin Chargaff was an Austrian biochemist who observed that nucleic acids were present in different ratios depending upon the biological source.
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Francis Crick & James Watson discovered the three dimensional shape of the DNA double helix
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Mary-Clair King & Allan Wilson discovered genetic evidence that humans and chimpanzees are 99% similar.
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Won the Nobel Prize in 1983 for discovering "jumping genes" or genes that cause mutations as they change position in the genome.
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Project which successfully identified all the genes in human DNA and their sequences.
