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Jacob, François

(Encyclopedia)Jacob, François fräNswäˈ zhäkôbˈ [key], 1920–2013, French biologist and geneticist, educated at the Sorbonne. His medical studies were interrupted by World War II. He joined the Free French F...

parthenogenesis

(Encyclopedia)parthenogenesis pärˌthənōjĕnˈəsĭs [key] [Gr.,=virgin birth], in biology, a form of reproduction in which the ovum develops into a new individual without fertilization. Natural parthenogenesis ...

zoology

(Encyclopedia)zoology, branch of biology concerned with the study of animal life. From earliest times animals have been vitally important to man; cave art demonstrates the practical and mystical significance animal...

race

(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 aspects of appearanc...

genetics

(Encyclopedia)genetics, scientific study of the mechanism of heredity. While Gregor Mendel first presented his findings on the statistical laws governing the transmission of certain traits from generation to genera...

Hippocrates

(Encyclopedia)Hippocrates hĭpŏkˈrətēz [key], c.460–c.370 b.c., Greek physician, recognized as the father of medicine. He is believed to have been born on the island of Cos, to have studied under his father, ...

Zola, Émile

(Encyclopedia)Zola, Émile āmēlˈ zôläˈ [key], 1840–1902, French novelist, b. Paris. He was a professional writer, earning his living through journalism and his novels. About 1870 he became the apologist for...

hypertension

(Encyclopedia)hypertension or high blood pressure, elevated blood pressure resulting from an increase in the amount of blood pumped by the heart or from increased resistance to the flow of blood through the small a...

hair

(Encyclopedia)CE5 A. Cross section of a hair shaft B. General structure of a hair hair, slender threadlike outgrowth from the skin of mammals. In some animals hair grows in dense profusion and is called fur or ...

Bell, Alexander Graham

(Encyclopedia)Bell, Alexander Graham, 1847–1922, American scientist, inventor of the telephone, b. Edinburgh, Scotland, educated at the Univ. of Edinburgh and University College, London; son of Alexander Melville...

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