nonpenetrance

nonpenetrance definition - medical

non·pen·e·trance (nŏn-pĕnˈĭ-trəns)

noun
  1. The state in which a genetic trait although present in the appropriate genotype fails to manifest itself in the phenotype.
  2. The obscuring of genetic traits by nongenetic mechanisms.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.