IN BRIEF -- IN BIOLOGY.

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      The article offers news briefs related to biology in January 1970 in the U.S. Successful isolation of a bacterial cell-membrane complex containing the attached deoxyribonucleic acid (DNA) and the nascent ribonucleic acid (RNA) has been achieved by three Tufts University microbiologists. Scientists at National Institutes of Health (NIH) National Cancer Institute have reported evidence that the development of human cancers of bone, cartilage, and fatty tissue may be associated with viruses