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Creighton, Harriet Baldwin & McClintock, Barbara
A CORRELATION OF CYTOLOGICAL AND GENETICAL CROSSING-OVER IN ZEA MAYS.
Washington, D.C., National Academy of Sciences, 1931.
25,5 cm. In: Proceedings of the National Academy of Sciences of the United States of America, 17:8, pp. 492-7. 2 illustrations and 3 tables in the text.

Item offered is Proceedings of the National Academy of Sciences, 17:8 complete (pp. 445-510), original printed wrappers.

$ 500

First edition. Cytological proof of genetical crossing over provided for the first time in any species. An important paper that established that chromosomes formed the basis of genetics. Harriet Baldwin Creighton [1909-2004], American botanist and cytogeneticist. Barbara McClintock [1902-1992], American botanist and cytogeneticist, was awarded the 1983 Nobel Prize in Physiology or Medicine "for her discovery of mobile genetic elements".

* L.C. Dunn, A short history of genetics, 165.

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