Lamarck, JeanBaptistePierreAntoine de Monet, chevalier de
Lamarck, JeanBaptistePierreAntoine de Monet, chevalier de (1744–1829)A French naturalist who, in 1809, advanced the theory that evolutionary change may occur by the inheritance of characteristics acquired during the lifetime of the individual. This theory was also the basis for Lysenko's arguments on the inheritance of acquired plant characteristics. It is interesting to note that the theory of the inheritance of acquired characteristics did not hold a central position in Lamarck's own writings. His cardinal point was that evolution is a directional, creative process in which life climbs a ladder from simple to complex organisms. He believed the inheritance of acquired characteristics provided a mechanism for this evolution. Lamarck explained that this progress of life up the ladder of complexity is complicated by organisms being diverted by the requirements of local environments; thus cacti have reduced leaves (and giraffes have long necks). Compare Darwin, CharlesRobert.
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Jean Baptiste Pierre Antoine De Monet Chevalier De Lamarck , Jean Baptiste Pierre Antoine de Monet Lamarck, chevalier de (zhäN bätēst´ pyĕr äNtwän´də mônā´, shəvälyā´ də lämärk´), 1744–1829, French naturalist.… Neo-lamarckism , neo-Lamarckism Modern evolutionary theories that in some sense allow the possibility that acquired characteristics may be inherited (as proposed by L… Acquired Characteristics , acquired characteristics Characteristics that are acquired by an organism during its lifetime, according to early evolutionary theorists (e.g. Lamarc… Qualitative Inheritance , Skip to main content
qualitative inheritance inherit , in·her·it / inˈherit/ • v. (-her·it·ed , -her·it·ing ) [tr.] receive (money, property, or a title) as an heir at the death of the previous holder: sh… Blending Inheritance , blending inheritance The early theory that assumed that hereditary substances from parents merge together in their offspring. Mendel showed that this…
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Lamarck, JeanBaptistePierreAntoine de Monet, chevalier de
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Lamarck, JeanBaptistePierreAntoine de Monet, chevalier de