| slovo | definícia |
lamarckism
(encz) | Lamarckism, |
Lamarckism
(gcide) | Lamarckism \La"marck"ism\, n. [From Lamarck, a distinguished
French naturalist.] (Biol.)
The theory that structural variations, characteristic of
species and genera, are produced in animals and plants by the
direct influence of physical environments, and esp., in the
case of animals, by effort, or by use or disuse of certain
organs. It is a discredited theory, not believed by modern
biologists.
[1913 Webster +PJC] |
lamarckism
(wn) | Lamarckism
n 1: a theory of organic evolution claiming that acquired
characteristics are transmitted to offspring |
| | podobné slovo | definícia |
neo-lamarckism
(encz) | Neo-Lamarckism, |
Lamarckism
(gcide) | Lamarckism \La"marck"ism\, n. [From Lamarck, a distinguished
French naturalist.] (Biol.)
The theory that structural variations, characteristic of
species and genera, are produced in animals and plants by the
direct influence of physical environments, and esp., in the
case of animals, by effort, or by use or disuse of certain
organs. It is a discredited theory, not believed by modern
biologists.
[1913 Webster +PJC] |
Neo-Lamarckism
(gcide) | Neo-Lamarckism \Ne`o-La*marck"ism\, n. (Biol.)
Lamarckism as revived, modified, and expounded by recent
biologists, esp. as maintaining that the offspring inherits
characters acquired by the parent from change of environment,
use or disuse of parts, etc.; -- opposed of Neo-Darwinism
(which see, above).
Note: This theory has been thoroughly discredited, though it
had some support for a time in the Soviet Union due to
the influence of the biologist Lysenko.--
Ne`o-La*marck"i*an, a. & n.
[Webster 1913 Suppl.] |
neo-lamarckism
(wn) | Neo-Lamarckism
n 1: a modern Lamarckian theory emphasizing the importance of
environmental factors in genetic changes and retaining the
notion of the inheritance of acquired characters |
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