acquired character

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Related to acquired character: Acquired characteristics


1. a quality or attribute indicative of the nature of an object or organism.
2. in genetics, an observable property of an organism that is under genetic control; a trait.
3. in psychiatry, a term used, especially in the psychoanalytic literature, in much the same way as personality, particularly for those personality traits shaped by life experiences and developmental processes. Compare temperament.
acquired character a noninheritable modification produced in an animal as a result of its own activities or of environmental influences.
character disorders personality disorders.
dominant character a mendelian character that is expressed when it is transmitted by a single gene.
mendelian c's in genetics, the separate and distinct traits exhibited by an animal or plant and dependent on the genetic constitution of the organism.
primary sex c's those traits of the male and female directly concerned in reproduction.
recessive character a mendelian character that is expressed only when transmitted by both genes (one from each parent) determining the trait.
secondary sex c's those traits specific to the male and female but not directly concerned in reproduction, such as facial hair, voice depth, and distribution of body fat.
sex-conditioned character (sex-influenced character) an autosomal trait whose full expression is conditioned by the sex of the individual, e.g., human baldness.
sex-linked character one transmitted consistently to individuals of one sex only, being carried in the sex chromosome.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ac·quired char·ac·ter

a character developed in a plant or animal as a result of environmental influences during the individual's life.
Farlex Partner Medical Dictionary © Farlex 2012

ac·quired char·ac·ter

(ă-kwīrd' kar'ăk-tĕr)
A character developed in a plant or animal as a result of environmental influences rather than heredity.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

ac·quired char·ac·ter

(ă-kwīrd' kar'ăk-tĕr)
Character developed due to environmental influences.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
There are at least two mechanisms by which acquired characters can be made heritable.
Not all acquired characters are necessarily adaptive, but like random (nondirectional, nonteleological) genetic mutants, only heritable adaptive traits are likely to persist over many generations in a population of organisms through natural selection.
French naturalist Jean Baptiste Lamarck (1744-1829) revolutionized the study of lower invertebrates, but he is best known today for popularizing the ancient theory (Plato discussed it) of the inheritance of acquired characters in his 1809 book Zoological Philosophy.

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