Biology   Guttman
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Caldwell, Mark. "Prokaryotes at the Gate." Discover, August 1994, p. 44. A report on antibiotic resistance in bacteria. One source at the Centers for Disease Control reports that organisms resistant to every known antibiotic now exist.

Fedoroff, Nina V. "Transposable Genetic Elements in Maize." Scientific American, June 1984, p. 84. Mobile genes occur in bacteria, plants, and animals.

Stahl, Franklin W. "Genetic Recombination." Scientific American, February 1987, p. 90. How chromosomes trade parts and reshuffle their genetic information.

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