Nathaniel C. Comfort
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Nathaniel Charles Comfort is an American historian specializing in the history of biology. He is an associate professor in the Institute of the History of Medicine at Johns Hopkins University. In 2015
Comfort in 2016
Barbara McClintock
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Barbara McClintock 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. T
Nathaniel C. Comfort
…Kluge Center. He also serves on the advisory council of METI (Messaging Extraterrestrial Intelligence). Comfort is best known for his 2001 biography of Barbara McClintock, The Tangled Field: Barbara McClintock's Search for the Patterns of Genetic Control. He has been praised for his reinterpretation of the response to…
McClintock in her laboratory, 1947
McClintock children, from left to right: Mignon, Malcolm Rider "Tom", Barbara and Marjorie
McClintock family, from left to right: Mignon, Tom, Barbara, Marjorie and Sara (at the piano)
The relationship of Ac/Ds in the control of the elements and mosaic color of maize. The seed in 10 is colorless; there is no Ac element present, and Ds inhibits the synthesis of colored pigments called anthocyanins. In 11 to 13, one copy of Ac is present; Ds can move, and some anthocyanin is produced, creating a mosaic pattern. In the kernel in panel 14 there are two Ac elements, and in panel 15 there are three.