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Reports on the production of human and rat growth hormone, by Howard M. Goodman and scientists of University of California Medical Center, San Francisco, California, respectively, by gene splicing in bacteria. Functions of human growth hormone; Use of recombinant DNA techniques; Control of secretion in bacteria of growth hormones; Hindrances to production of human growth hormone by bacteria for clinical trials.

Reports on the research at the University of California, Berkeley on genetically engineering bacteria for use in the clean up of phosphate- and metal-contaminated sites. Manipulation of polyphosphate metabolism in Escherichia coli; Potential improvement of bacteria for the production of recombinant proteins.