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Skellefteå

(Encyclopedia)Skellefteå shĕlĕfˈtəōˌ [key], city (1990 pop. 31,050), Västerbotten co., NE Sweden, on the Skellefteälven River inland from its mouth on the Gulf of Bothnia. The center of a rich mining regio...

River Rouge

(Encyclopedia)River Rouge ro͞ozh [key], city (1990 pop. 11,314), Wayne co., SE Mich., an industrial suburb of Detroit, on the Detroit and Rouge rivers; settled c.1817, inc. 1899. It is a port of entry, with automo...

hybrid

(Encyclopedia)hybrid hīˈbrĭd [key], term applied by plant and animal breeders to the offspring of a cross between two different subspecies or species, and by geneticists to the offspring of parents differing in ...

Horvitz, H. Robert

(Encyclopedia)Horvitz, H. Robert (Howard Robert Horivtz), 1947–, American geneticist, b. Chicago, Ill., Ph.D. Harvard, 1974. Horvitz has been a professor at the Massachusetts Institute of Technology since 1978. W...

episome

(Encyclopedia)episome ĕpˈĭsōm [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 chromosome of the c...

Mullis, Kary Banks

(Encyclopedia)Mullis, Kary Banks, 1944–2019, American biochemist, b. Lenoir, N.C., Ph.D. Univ. of California, Berkeley, 1972. Mullis was a researcher with Cetus Corp., Emeryville, Calif., from 1979 to 1986 and wi...

Khorana, Har Gobind

(Encyclopedia)Khorana, Har Gobind, 1922–2011, American biochemist, b. Raipur (now in Pakistan), Ph.D. Univ. of Liverpool, 1948. He became a U.S. citizen in 1966, and was a professor at the Massachusetts Institute...

Philistines

(Encyclopedia)Philistines fĭlˈĭstēnz, fĭlĭsˈ– [key], inhabitants of Philistia, a non-Semitic people who came to Palestine from a region in the Mediterranean in the 12th cent. b.c. Genetic studies in the 21...

quagga

(Encyclopedia)quagga kwăgˈə [key], extinct type of zebra. It formerly inhabited open plains in S Africa, where its range overlapped that of the plains zebra, or common zebra (Equus quagga, formerly E. burchellii...

baldness

(Encyclopedia)baldness, thinning or loss of hair as a result of illness, functional disorder, or hereditary disposition; also known as alopecia. Male pattern baldness, a genetic trait, is the most common cause of b...