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Gregor Mendel discovered about heredity by using pea plants. This also helps support natural selection and helps with incomplete dominance studies.
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“On the Origin of Species by Means of Natural Selection, or the Preservation of Favored Races in the Struggle for Life.” was written by Charles Darwin
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Frederick Miescher isolates DNA from cells. It is called nuclein.
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Walter Sutton discovers that the segregation of the chromosomes
during meiosis matched Mendel's pattern of segregation perfectly. -
Wilhelm Johannsen creates the word 'gene'.
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Thomas Hunt Morgan and his students study fruit fly
chromosomes, showing that chromosomes carry genes. -
Francis H. Crick and James D. Watson described the double
helix structure of DNA, then receive the Nobel Prize for the discovery. -
Joe Hin Tjio discovers humans have exactly 46 chromosomes in their cells.
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Arthur Kornberg and colleagues isolated DNA polymerase
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Joe Hin Tjio discovers that there are 46 chromosomes in a human cell.
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Robert Guthrie finds a method to test newborns for the
metabolic defect PKU. -
Marshall Nirenberg figures out the genetic code
that lets nucleic acids and their alphabet determine the order of 20 kinds of amino acids in proteins. -
Marshall Nirenberg figures out the genetic code that lets nucleic acids and their 4 letter alphabet determine the order of 20 kinds of amino acids in proteins.
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The Food And Drug Administration approves the sale of the
first genetically modified food. -
The finished human genome sequence is at least 99.99%
accurate. -
Francis H. Crick and James D. Watson described the double
helix structure of DNA. They then get a Nobel Prize.
