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The Race to the Ribosome Structure

Article Abstract:

Four groups have within their sights the deciphering of the structure of ribosome which is the tiny particle in a cell that translates the genome's messages into all the proteins needed for life. Research in working out its structure by x-ray crystallography is complicated by its tangle of 54 proteins and three RNA strands. Venki Ramakrishnan's team at the University of Utah, the team of Peter Moore and Thomas Steitz at Yale University, Ada Yonath and her colleagues at the Weizmann Institute of Science and the Max Planck Research Unit, and Harry Noller at the University of California Santa Cruz report their work on the structure.

Author: PENNISI, ELIZABETH
Publisher: American Association for the Advancement of Science
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1999
Israel, Germany, California, Connecticut, Utah, Ribosomes, Molecular structure, Yale University, University of Utah, Weizmann Institute of Science, University of California (Santa Cruz)

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DNA and Field Data Help Plumb Evolution's Secrets

Article Abstract:

White moths have formed a partnership with the yucca desert plant. The moth lays is eggs on the yucca after pollinating the yucca's flowers. The seeds nourish the developing larvae. If two species of moths depend on the same yucca, one moth becomes a parasite of both the other moth and the yucca. The relationship demonstrates the evolutionary interactions.

Author: PENNISI, ELIZABETH
Publisher: American Association for the Advancement of Science
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1999
Analysis, Plants, Plants (Organisms), Natural history, Moths, Evolution (Biology), Evolution, Inbreeding

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