Printer Friendly
The Free Dictionary
989,795,744 visitors served.
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

acquired characteristics

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.04 sec.
acquired characteristics, modifications produced in an individual plant or animal as a result of mutilation, disease, use and disuse, or any distinctly environmental influence. Some examples are docking of tails, malformation caused by disease, and muscle atrophy. The belief in the inheritability of acquired characteristics, proposed by the French biologist Jean-Baptiste Lamarck Lamarck's theory of evolution, or Lamarckism, asserts that all life forms have arisen by a continuous process of gradual modification throughout geologic history. To explain this process he cited the then generally accepted theory of acquired characteristics , which held that new
..... Click the link for more information.
 in 1809, was widely accepted at one time, but is now rejected. Geneticists have affirmed that inheritance is determined solely by the reproductive cells and is unaffected by somatic (body) cells.

?Page tools
Printer friendly
Cite / link
Email
Feedback
? Mentioned in ? References in periodicals archive
 
He performed blood-transfusion experiments on rabbits, which undermined Darwin's effort to build upon Jean-Baptiste Lamarck's suggestion that acquired characteristics can be inherited.
21) and what seems to be a sort of Lamarckian view on the author's part on the inheritance of acquired characteristics (p.
These targets were based on socialist theory created by Stalin's favorite geneticist, Lysenko, who had caused a sensation (and much Western incredulity) by claiming that environmentally acquired characteristics would be inherited by the next generation.
 
Encyclopedia browser? ? Full browser
 
 
Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2008 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.