Word: molecular
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...diversity of research, as well as the Center's size, makes it unique. Field says its $15 million annual budget supports the only working body of scientists in the country that includes all the various disciplines of astronomy--from optical astronomy, to atomic and molecular physics, to theoretical astrophysics. The Center is also unique because it brings together under one roof and one name a department of Harvard's Faculty of Arts and Sciences and a division of a federal agency. The Faculty department is the Harvard College Observatory (HCO). The federal division is the Smithsonian Astrophysical Observatory...
...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 one of the researchers, it could alter Darwin's theory of natural selection and current concepts of genetic engineering...
Updating Darwin. Pieczenik believes there is further significance in the DNA patterns he discovered. In his view, the constraints suggest that a process of natural selection occurs at the molecular level long before organisms develop. If this is true, some additions will have to be made to the Darwinian theory that natural selection takes place only after the organism is formed and begins adapting to the world around it. That notion does not seem to bother Pieczenik. "What this means," he says, "is that the DNA sequences exist to protect themselves and their own information...
...invited Ruth Hubbard '44, lecturer on Biology, Bernard D. Davis '36, Lehman Professor of Bacterial Physiology at the Med School. Matthew S. Meselson, chairman of the Department of Biochemistry and Molecular Biology, and Jonathan R. Beckwith '57, professor of Microbiology and Molecular Genetics at the Med School, to speak at the three-day conference...
While determining the entire 5375 nucleotide sequence which determines the genetic make-up of the virus Phi-X174, the group at the Laboratory of Molecular Biology in Cambridge, England found that the same portions of the sequence could be 'read' in two different ways, each leading to the synthesis of a different protein...