Dictionary > Incomplete penetrance

Incomplete penetrance

Definition
noun
A form of penetrance in which not all individuals carrying a deleterious gene express the associated trait or condition.
Supplement
A disease is said to show incomplete penetrance when some individuals express the associated trait while others do not even though they carry the disease-causing gene. For instance, some people with a mutation in the BRCA1 or BRCA2 gene will develop cancer during their lifetime, other people will not.
‘’Synonym:’’ reduced penetrance
Compare: complete penetrance


You will also like...

Lotic community of algal species
Lotic Communities & Algae

Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..

Biosecurity and Biocontrol
Biosecurity and Biocontrol

This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..

Human gastrointestinal tract
Human Biology – Food and Digestion

This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..

Photosynthesis and respiration
Plant Metabolism

Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..

DNA - schematic
Genetic Mutations

This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..

Non-Mendelian Inheritance
Non-Mendelian Inheritance

In this tutorial, find out more about certain types of inheritance that does not follow the Mendelian inheritance patter..