(Encyclopedia) episomeepisomeĕpˈĭsōm [key], unit of genetic material composed of a series of genes that sometimes has an independent existence in a host cell and at other times is integrated into a…
(Encyclopedia) Goodman, Benny (Benjamin David Goodman), 1909–86, American clarinetist, composer, and band leader, b. Chicago. Goodman studied clarinet at Hull House. In Chicago he had the opportunity…
(Encyclopedia) species, in biology, a category of classification, the original and still the basic unit in the demarcation of plant and animal types. The species marks the boundary between…
directorBirthplace: Houston, Texas Anderson achieved by age 30 what few directors have been able to do: create intelligent, quirky, independent-minded Hollywood films. Born and raised in Houston,…
(Encyclopedia) race, one of the group of populations regarded as constituting humanity. The differences that have historically determined the classification into races are predominantly physical…
HERRICK, Manuel, a Representative from Oklahoma; born in Perry, Tuscarawas County, Ohio, September 20, 1876; moved with his parents to Greenwood County, Kans., in 1877; was self-educated;…
(Encyclopedia) differentiation, in biology, series of changes that occur in cells and tissues during development, resulting in their specialization. This, in turn, permits a greater variety of…
(Encyclopedia) Muller, Hermann JosephMuller, Hermann Josephmŭlˈər [key], 1890–1967, American geneticist and educator, b. New York City, grad. Columbia (B.A., 1910; Ph.D., 1916). A student of Thomas…
(Encyclopedia) Luria, Salvador Edward, 1912–1991, American physician, b. Turin, Italy, M.D., Univ. of Turin, 1935. He conducted research and taught at the Institute of Radium in Paris (1938–40),…
