Word: egg
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...EGG (6-10 weeks...
...strongly support Hume’s greatness on the ground that the force of his personality definitely affected the age in which he lived. It is not a question of the cart before the horse in either case, merely a problem of which came first, the chicken or the egg. In any case, there is much to be said on both sides...
...cells, can morph into any kind of tissue. (So-called adult stem cells, which can be harvested without sacrificing embryos, can turn into only a few tissue types.) One day, scientists hope, the entire genetic makeup of a patient like Zucker could be transferred into a cloned human egg that can produce the insulin-producing cells her body lacks...
Meanwhile, General Mills has acknowledged that higher egg demand suggests that many consumers are eating omelets instead of cereal. The company, which partly attributed poor financial results last quarter to carb counting, is responding with a higher-protein/lower-carb version of Total cereal. It will unveil 40 new products in May, including low-carb Hamburger Helper. Kraft is working on a CarbWell line of salad dressings and barbecue sauces, and is recasting its marketing to feature the meager carb content of sugar-free Jell-O. Breyers is rolling out CarbSmart Klondike bars...
...other things being equal, an embryo must have both a maternal genomic imprint (usually from an egg) and a paternal genomic imprint (usually from a sperm), or it won't grow properly. If it has two paternal imprints, the placenta grows but not the embryo. If it has two maternal imprints, the embryo grows but not the supporting placenta. Defects in imprinting in humans are thought to contribute to such neurodevelopmental ailments as Prader-Willi syndrome and perhaps some forms of autism. Genes that have lost their imprinting have also shown up in brain tumors...