Word: intersex
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Dates: during 1960-1969
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...such a cat has to be a female because its black and orange patches must result from two different X chromosomes. What seemed to be male calico cats have turned out, on study of their cells, to have two X chromosomes as well as a Y. They are an intersex form, and they are sterile...
...soon be tinkering with his chromosomes and the genes they contain. Mongolism has recently been shown to be associated with a supernumerary chromosome: victims have 47 instead of the normal 46. Some cases of intersex abnormalities have one or even two extra female (X) chromosomes. Within the chromosomes, a defective gene may fail in its function because a single fraction of its nucleic acid molecule is aberrant and inutile. The time may come, suggested the Rockefeller Institute's Geneticist Edward L. Tatum, when medical men will be able to replace a defective gene with a specially tailored nucleic acid...