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gene
(Encyclopedia)gene, the structural unit of inheritance in living organisms. A gene is, in essence, a segment of DNA that has a particular purpose, i.e., that codes for (contains the chemical information necessary f...adaptation
(Encyclopedia)adaptation, in biology, has several meanings. It can mean the adjustment of living matter to environmental conditions and to other living things either in an organism's lifetime (physiological adaptat...guinea pig
(Encyclopedia)guinea pig gĭnˈē [key], domesticated form of the cavy, Cavia porcellus, a South American rodent. It is unrelated to the pig; the name may refer to its shrill squeal. Guinea pigs were raised by the ...crossing over
(Encyclopedia)crossing over, process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other. Crossing over occurs in the first division of meiosis. At that stage each ...botany
(Encyclopedia)botany, science devoted to the study of plants. Botany, microbiology, and zoology together compose the science of biology. Humanity's earliest concern with plants was with their practical uses, i.e., ...horticulture
(Encyclopedia)horticulture [Lat. hortus=garden], science and art of gardening and of cultivating fruits, vegetables, flowers, and ornamental plants. Horticulture generally refers to small-scale gardening, and agric...Gates, Henry Louis, Jr.
(Encyclopedia)Gates, Henry Louis, Jr., 1950–, American scholar and critic, b. Keyser, W.Va., B.A. Yale, 1973, Ph.D. Cambridge, 1979, where he studied with Wole Soyinka. Gates is an expert on African-American lite...pea
(Encyclopedia)pea, hardy, annual, climbing leguminous plant (Pisum sativum) of the family Leguminosae (pulse family), grown for food by humans at least since the early Bronze Age; no longer known in the wild form. ...Cela, Camilo José
(Encyclopedia)Cela, Camilo José kämēˈlō hōsāˈ thāˈlä [key], 1916–2002, Spanish novelist, short-story writer, and poet, b. Iria Flavia. Among the writers to emerge after the Spanish civil war, he won cr...Browse by Subject
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