Word: chromatin
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Dates: during 1950-1959
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...method is based on the fact, demonstrated by Canadian scientists (TIME, Feb. 23, 1953), that a substance called sex chromatin can be detected in female but not in male cells. Dr. David Serr and Geneticists Leo Sachs and Mathilde Danon of Jerusalem's Rothschild-Hadassah University Hospital reasoned that cells in the amniotic fluid, the liquid inside the sac that encloses the fetus, could be analyzed to reveal the child's sex. To get small samples of the fluid, they inserted an extremely fine hypodermic needle through the vagina and into...
...Canadian believes that he has solved the diagnostic problem in human intersex. All human cells, says Dr. Murray L. Barr of the University of Western Ontario, contain something called sex chromatin. It is easy to spot in females' cells, because there it is made from two husky X chromosomes. It is not seen in male cells, because they draw on only one X chromosome and a measly little Y chromosome...