Word: free-floating
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...weren't complaining after a few glitches extended their space walk in and around the embryonic International Space Station by two hours. "You can't be telling me we're almost done," Barry said before ducking back inside the space shuttle Discovery at the end of the eight-hour free-float. "Wow. It feels like we just walked outside." The mission was mostly a prep for the crews to come: setting up space scaffolding, attaching cranes and hanging bags of tools on the exterior of the seven-story station...
...phenylketonuria, a metabolic disorder that may result in brain damage-many basic questions must first be answered. For example, will the transplanted genes actually work as they are supposed to or will they be modified or inactivated by the animal's own genetic machinery? Will the foreign genes free-float in the cells or will they latch on to the other genes arranged along the chromosomes? Will genes that normally are switched on only in specific types of cells function in the same way when they have been introduced into other types of cells through genetic engineering? Finally, will...
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