Word: consistence
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...ability to acquire new and possibly advantageous genes would seem to be highly limited. But the tiny creatures have devised a cunning alternative. Besides their single, large, ringed chromosome (which is the repository of most of their genes), they possess much smaller closed loops of DNA, called plasmids-which consist of only a few genes. This extra bit of DNA-genetic small change, as it has been dubbed-serves a highly useful purpose. When two bacteria brush against each other, they sometimes form a connecting bridge. During such a "conjugation," a plasmid from one bacterium may be passed into...
...core of this year's crew will consist of members of last season's undefeated (of course) junior varsity squad. Parker will anchor the boat from the sixth position and John Harting, this year's pleasant surprise who came back after a year away from the boathouse, has moved into the stroke's seat...
...earth's equatorial plane and cannot be seen by terrestrial telescopes-lie in a 7,000-km.-wide (4,400-mile) belt. Four of the flattened rings are about 10 km. (6 miles) across, while the outermost one is 100 km. (60 miles) wide. What the rings consist of is uncertain. Says Elliot: "One theory about Saturn's rings is that they are made out of snowballs, so one good guess about Uranus' rings would be that they are also some type...
...life begin on the primordial earth? Scientists looking for clues within the living cell have been stymied by a catch-22. All living organisms are composed largely of proteins, which consist of strings of amino acids manufactured within cells in small granules called ribosomes. But ribosomes are themselves highly complex protein structures that obviously evolved long after protein first appeared. Then how, without the complex ribosome "factories," was primitive protein produced? Last week, in a report published in the journal Origin of Life, a team of molecular biologists suggested an answer. If the hypothesis is correct, says...
...reported any sexual assaults since March 19, Robert G. Mudge, Harvard police records coordinator, said yesterday. Sexual assaults include any assault with apparent sexual overtones and often consist only of light touching, Kahn said...