Barbara McClintock

Barbara McClintock
1902 - 1992

Barbara McClintock  American Scientist

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90
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Details

First Name Barbara
Last Name McClintock
Full Name at Birth Barbara McClintock
Alternative Name Barbara McClintock
Birthday 16th June, 1902
Birthplace Hartford, Connecticut USA
Died 2nd September, 1992
Place of Death Huntington, New York USA
Zodiac Sign Gemini
Nationality American
Occupation Scientist

Barbara McClintock (June 16, 1902 – September 2, 1992) was an American scientist and cytogeneticist who was awarded the 1983 Nobel Prize in Physiology or Medicine. McClintock received her PhD in botany from Cornell University in 1927. There she started her career as the leader in the development of maize cytogenetics, the focus of her research for the rest of her life. From the late 1920s, McClintock studied chromosomes and how they change during reproduction in maize. She developed the technique for visualizing maize chromosomes and used microscopic analysis to demonstrate many fundamental genetic ideas. One of those ideas was the notion of genetic recombination by crossing-over during meiosis—a mechanism by which chromosomes exchange information. She produced the first genetic map for maize, linking regions of the chromosome to physical traits. She demonstrated the role of the telomere and centromere, regions of the chromosome that are important in the conservation of genetic information. She was recognized as among the best in the field, awarded prestigious fellowships, and elected a member of the National Academy of Sciences in 1944.

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