Barbara McClintock

16 June 1902 – 2 September 1992

Barbara McClintock was an American scientist and cytogeneticist who was awarded the Nobel Prize in Physiology or Medicine for her discovery of transposable elements, or 'jumping genes'. Working with maize, she made fundamental contributions to the understanding of chromosomes and genetic regulation.

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Life events

Born in Hartford, Connecticut
16 June 1902

Barbara McClintock was born in Hartford and raised in Brooklyn, New York.

Source: en.wikipedia.org
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Earned a PhD from Cornell University
1927

She received her doctorate in botany, focusing on the cytogenetics of maize.

Source: en.wikipedia.org
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Demonstrated genetic recombination in maize
1931

With Harriet Creighton she produced evidence linking chromosomal crossover to the exchange of genetic traits.

Source: en.wikipedia.org
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Joined Cold Spring Harbor Laboratory
1941

She took a research position at Cold Spring Harbor, where she spent the rest of her career.

Source: en.wikipedia.org
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Elected President of the Genetics Society of America
1945

She became the first woman to serve as president of the society.

Source: en.wikipedia.org
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Discovered transposable elements
1950

She identified genetic transposition, showing that genes can move within and between chromosomes.

Source: en.wikipedia.org
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Awarded the Nobel Prize
1983

She received the Nobel Prize in Physiology or Medicine for the discovery of mobile genetic elements.

Source: en.wikipedia.org
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Died in Huntington, New York
2 September 1992

Barbara McClintock died at the age of 90.

Source: en.wikipedia.org
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