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plague

(Encyclopedia)plague, any contagious, malignant, epidemic disease, in particular the bubonic plague and the black plague (or Black Death), both forms of the same infection. These acute febrile diseases are caused b...

DNA fingerprinting

(Encyclopedia)DNA fingerprinting or DNA profiling, any of several similar techniques for analyzing and comparing DNA from separate sources, used especially in law enforcement to identify suspects from hair, blood, ...

Human Genome Project

(Encyclopedia)Human Genome Project, international scientific effort to map all of the genes on the 23 pairs of human chromosomes and, to sequence the 3.1 billion DNA base pairs that make up the chromosomes (see nuc...

prion

(Encyclopedia)prion prēˈŏn [key], abnormal form of a protein found in mammals, now generally believed to cause a group of diseases known as prion diseases or transmissible spongiform encephalopathies, which are ...

breeding

(Encyclopedia)breeding, in agriculture and animal husbandry, propagation of plants and animals by sexual reproduction; usually based on selection of parents with desirable traits to produce improved progeny. In con...

skin cancer

(Encyclopedia)skin cancer, malignant tumor of the skin. The most common types of skin cancer are basal cell carcinoma, squamous cell carcinoma, and melanoma. Rarer forms include mycosis fungoides (a type of lymphom...

evolution

(Encyclopedia)CE5 Plant and animal evolution [Modified from Alfred Gunderson in Brooklyn Botanic Garden Leaflets, Ser. 18, No. 4 (1930); used by permission.] evolution, concept that embodies the belief that ex...

Yeats, W. B.

(Encyclopedia)Yeats, W. B. (William Butler Yeats), 1865–1939, Irish poet and playwright, b. Dublin. The greatest lyric poet Ireland has produced and one of the major figures of 20th-century literature, Yeats was ...

Cleveland, Grover

(Encyclopedia)Cleveland, Grover (Stephen Grover Cleveland), 1837–1908, 22d (1885–89) and 24th (1893–97) President of the United States, b. Caldwell, N.J.; son of a Presbyterian clergyman. Cleveland's independ...

contemporary art

(Encyclopedia)contemporary art, the art of the late 20th cent. and early 21st cent., both an outgrowth and a rejection of modern art. As the force and vigor of abstract expressionism diminished, new artistic moveme...