Word: miceli
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Dates: during 1970-1979
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...Cambridge University, who had solved the problem of in-vitro capacitation of rabbit sperm, a process that enabled sperm to penetrate the egg in the laboratory. Until then, the sperm were notably ineffectual in that role. But these early successes 'involved creatures no higher than rabbits, hamsters and mice...
...test-tube fertilization had been performed by two respected scientists whose accomplishments and progress had been described in many published papers. But Image did not identify the clone or the cloner, and offered no evidence that the state of the art had advanced to the point at which mice, let alone human beings, could be cloned. While many of the technical problems involved in the test-tube conception of a human are being resolved, the cloning of Homo sapiens is still far beyond the current capability of medical science...
Though cloning mammals by the classic method is a long way off, scientists are moving closer to cloning mice by an indirect route. In this technique, devised by Yale Biologist Clement Markert, eggs are removed from a female mouse shortly after fertilization. At this early stage, genetic material from egg and sperm have not yet mixed; the mother's and father's genes are still in two distinct sacs, called pronuclei. Using microsurgery, Markert removes either pronucleus. The egg is then exposed to a chemical that causes the remaining pronucleus to replicate, thus giving the cell a full...
Researchers have long been frustrated by their inability to get cancer cells from patients' tumors to grow rapidly in culture. But the Arizona team, led by Dr. Sydney Salmon and Cell Biologist Anne Hamburger, discovered three years ago that by "conditioning" culture medium with spleen cells taken from mice prone to cancer, they can grow tumor cells from people with common forms of cancer. (The mouse cells apparently produce some yet unidentified factor that supports the growth of certain human cancer cells.) According to Salmon, the cancer cells that thrive and form colonies in the laboratory's plastic...
...protest-minded character actor who capped a long career with his portrayal of the blustery grandfather in television's homespun series, The Waltons; of heart disease; in Los Angeles. Wanderlust led the young Geer to riverboat theater, the Shakespearean stage and the bright lights of Broadway (Of Mice and Men, Tobacco Road). Blacklisted in the McCarthy era, he pursued an interest in botany with a book on the 1,000 plants in Shakespeare's plays and a repertory theater in Topanga Canyon, Calif, called the Theatricum Botanicum, where he continued to hold workshops for young actors even after...