acquired characteristics


Also found in: Dictionary, Encyclopedia.

acquired characteristics

Features of an organism, such as the human being, arising from environmental influences or bodily functioning, rather than from heredity.

ac·quired char·ac·ter

(ă-kwīrd' kar'ăk-tĕr)
Character developed due to environmental influences.
References in periodicals archive ?
Even before Lysenko, in the 1920s, the German biologist Paul Kammerer and a slew of less-familiar Russian biologists promoted the idea of acquired characteristics as a sort of Marxist eugenics.
6) And he had a thoroughly scientific explanation for that vital force: the inheritance of acquired characteristics.
Like most biologists of his time, he rejected Lamarck's theory of the inheritance of acquired characteristics, but he had nothing to put in its place.
In both the instances mentioned here--the inheritance of acquired characteristics and the primal horde theory--Freud, as always, looked to authorities for support for his hypotheses.
Little credence is paid to acquired characteristics through environmental influence, as espoused by 19th century biologist Jean Baptiste de Lamarck.
Detailed information acquired characteristics of the service and the requirements described in the request for participation in the Annexes.
Jean-Baptiste Lamarck (1744-1829), from whom Lamarckism draws its name, suggested that there are two trends in nature: an upward, unidirectional trend of complexification (orthogenesis), and the inheritance of acquired characteristics ("use and disuse" for Darwin) that would explain an organism's adaptation to environmental conditions.
From the outset, Italian eugenics; unlike eugenics in Britain and the United States, promoted a neo-Lamarkian view of evolution--the belief that the inheritance of acquired characteristics and natural selection cause a species to evolve--rather than a Mendelian one which would have held that physical particles passed from parents to offspring, determining traits of all organisms and guiding their evolution.
One institution is crucial to Trumbach's argument: the emergence of the domesticated brothel, a marketplace for heterosexual sex that acquired characteristics compatible with the romantic model of relationship embraced by aristocracy and gentry.
The Soviet Union imposed Lysenkoism--the notion that acquired characteristics can be inherited--on its scientific community.
Researchers at the Harvard School of Public Health in Boston say they have shown that bacteria can somehow adopt genetic traits in response to a particular environment, then pass on these acquired characteristics to their offspring.
Such thinkers, for example, combined Lamarck's theory of acquired characteristics with Spencer's and Darwin's ideas about the evolution of morality and incorporated them into the concept of a created and "divinely instituted process" that would lead to a perfected humanity.

Full browser ?