the extent to which a heritable trait is manifested by an individual carrying the principal gene or genes that determine it.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
In clinical genetics, the degree of severity in which a gene is manifested.
Farlex Partner Medical Dictionary © Farlex 2012
n. pl. expressivi·ties
1. The quality of being expressive.
2. Genetics The degree to which an expressed gene produces its effects in an organism.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
expressivity The degree of severity shown by an AUTOSOMAL dominant trait in any particular affected individual. The main feature of expressivity is its variability.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
expressivity the degree to which a particular gene exhibits itself in the PHENOTYPE of an organism, once it has undergone PENETRANCE. Thus, for example, a penetrant baldness gene in man can have a wide range of expressivity, from thinning hair to complete lack of hair.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
The extent to which an inherited trait or disease is manifested in the phenotype. It is a qualitative evaluation unlike penetrance. Syn. expression.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
Patient discussion about expressivity
Q. where do the expression "going back on the wagon " come from?
Q. What role does emotion have in the life of someone with autism? I just find the whole disorder of autism hard to understand because I'm a really emotional person. I'm especially interested in how people with mild autism or Asperger's can function fine but then when it comes to feeling empathy they have such trouble. I guess my question is how such people experience emotion--are these people actually unable to care about others? My intention is not to sound ignorant, I'm genuinely curious.
A. I have asperger's and most everything for me is logically analyzed and I have a difficulty knowing what emotion goes with certain situations and how the emotion manifests itself within me.More discussions about expressivity
I care about others, I just cannot always put myself in their shoes and feel what they are feeling.
This content is provided by iMedix and is subject to iMedix Terms. The Questions and Answers are not endorsed or recommended and are made available by patients, not doctors.