noun
definition
The quality or state of being penetrant; power of entering or piercing; penetrating power.
definition
The proportion of individuals carrying a particular variation of a gene that also express an associated trait
Examples of penetrance in a Sentence
Human genetic studies are impeded by inconsistent loss of genetic material, variable expressivity, and decreased penetrance.
Whether the cat is heterozygous or homozygous for W, the blue eyes and deafness have incomplete penetrance.
However, decreased penetrance of a particular gene defect cannot be excluded.
There is a 50 per cent chance of parents passing on the gene, although with reduced penetrance.
A better understanding of the factors that underlie variable penetrance in mutation carriers is needed to augment our ability to counsel individual women.
Last November, the HFEA launched a public debate on testing embryos for ' lower penetrance ', late onset genetic disorders.
All these conditions are ' high penetrance ' - meaning that people who have the gene are extremely likely to develop the condition.
Most studies suggest that Tourette syndrome is an autosomal dominant disorder with decreased penetrance.
Decreased penetrance means that not all people who inherit the abnormal gene develop symptoms.
For persons with a ganglion growth beyond the sigmoid segment of the colon, the inheritance pattern is autosomal dominant with reduced penetrance (risk closer to 50 percent).