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THOMAS R. CECH - PHOTOGRAPH SIGNED - HFSID 201438

 
THOMAS R. CECH
The 1989 Noble Prize-winner penned his signature on this black and white 5x7 photograph
Photograph signed: "Thomas R. Cech". B/w, 5x7. Actual image 4½x6¾ with a white border (one surface. Photo by University of Colorado at Boulder. Thomas Cech (b. 1947) is an American molecular biochemist. He was awarded the 1989 Nobel Prize for Chemistry for discovering that RNA (ribonucleic acid), a type of nucleic acid involved in heredity, can also act as an enzyme, aiding a chemical reaction without being changed or consumed. Previously, scientists thought all enzymes were proteins. Cech also found that RNA can duplicate itself, indicating that it may have existed before another unit of heredity known as DNA (deoxyribonucleic acid) and therefore could have been the key molecule in the origin of life billions of years ago. He also researched telomeres, the material found at the end of chromosomes. Fine condition.


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THOMAS R. CECH  


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THOMAS R. CECH
Born: December 8, 1947 in Chicago, Illinois


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