Word: acidated
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...shown that gene mutations can be produced by changes in the environment, and the mutant strains will breed true. It began, he recalled, with the little-recognized achievement of three Rockefeller Institute scientists, Drs. Oswald Avery, Colin MacLeod and Maclyn McCarty in 1944. They showed that if nucleic acid from the genetic material of one strain of pneumococcus germs was stirred in with a batch of pneumococci of another strain, the second strain picked up the inherited traits of the first, and then, "in enduring continuity," bred true from cell to daughter cell. "The heritance of an acquired characteristic...
...heart did it. Now, in the New England Journal of Medicine, Dr. White and Dr. James H. Currens report what they found after DeMar died. They had good bases for comparison. Studied by physiologists in 1928 and 1953, DeMar had shown only a small rise in circulating lactic acid and a small drop in carbonic acid after exercise as compared with a healthy man who was not in training. These muscle-exhaustion measurements suggested a rich blood supply, and, as expected, Runner DeMar's heart turned out to be unusually large and muscular...
...does the drawing, another makes the pigments, still another does the engraving. At Iowa, the student does everything. Lasansky prefers etching and engraving on copperplate to lithography because the discipline is more rigid. His technique, which he calls intaglio, is really a combination of many methods-engraving, etching with acid, gouging, graining with sand. "We have a new breed," says he of his students, "the completely trained printmaker...
Each of the paired cannons, he found, has glands that discharge a fluid into a saclike reservoir. Using his best microtechniques, Dr. Schildknecht next analyzed the fluid and found to his amazement that it was about 10% hydroquinone and toluhydroquinone (acrid compounds related to carbolic acid) and 23% hydrogen peroxide. When mixed in a test tube these chemicals reacted spontaneously, giving off copious gas, but something still unknown keeps them from reacting as long as they lie undisturbed in the beetle's ammunition sacs...
...that in some unpredictable cases, a molecule of viral nucleic acid, without its protein overcoat, so closely resembles a gene that it can slip into the cell's chromosomal lineup, displacing a normal gene, and make the cell reproduce abnormally. Most of the resulting abnormal cells would probably die, but a few might retain the power to run wild and perpetuate themselves as cancer...