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Genes & Cells

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GROWING PAINS  As cells divide and grow to replenish and repair organs, accidental mutations may crop up in cancer-associated genes. A new study suggests such random mistakes are the source of 66 percent of mutations in cancer cells (illustrated here) across the board.

spraying DDT

DISEASE DEFENSE  To control the spread of dengue in Bangkok, DDT is sprayed to kill mosquitoes, the primary insect that transmits the virus.

psychedelic illustration

LONG, STRANGE TRIP  LSD briefly got tagged as a gene breaker a half century ago before getting a reprieve. Researchers are still trying to figure out how this substance triggers intense, long-lasting hallucinations.

Genes & Cells

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