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genetic engineering
(Encyclopedia)CE5 Genetic engineering: Gene-splicing techniques genetic engineering, the use of various methods to manipulate the DNA (genetic material) of cells to change hereditary traits or produce biologica...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...whale
(Encyclopedia)whale, aquatic mammal of the order Cetacea, found in all oceans of the world. Members of this order vary greatly in size and include the largest animals that have ever lived. Cetaceans never leave the...transplantation, medical
(Encyclopedia)transplantation, medical, surgical procedure by which a tissue or organ is removed and replaced by a corresponding part, usually from another part of the body or from another individual. A life-saving...Mexico, country, North America
(Encyclopedia)CE5 Mexico both: māˈhēkō [key], officially United Mexican States, republic (2015 est. pop. 125,891,000), 753,665 sq mi (1,952,500 sq km), S North America. It borders on the United States in the...Browse by Subject
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