Chemistry

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 illegal ivory

CARBON CONFUSION  Carbon released from fossil fuel burning will jeopardize the usefulness of many carbon dating applications, such as identifying illegal ivory, new research predicts.

paclitaxel

DRUG SOURCE  Tapping natural enzymes and engineered microbes may help chemists find and make new drugs, such as a version of this complicated anticancer drug called paclitaxel. 

rose

FLAUNTING FRAGRANCE   By comparing a sweet-smelling Papa Meilland rose (shown) with a bland bloom, researchers discovered a surprising enzyme critical to roses' aroma-making.

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