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penetrance
[ pen-i-truhns ]
/ ˈpɛn ɪ trəns /
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noun Genetics.
the frequency, expressed as a percentage, with which a particular gene produces its effect in a group of organisms.Compare expressivity (def. 2).
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Origin of penetrance
First recorded in 1635–45; penetr(ant) + -ance
Words nearby penetrance
Peneios, Penelope, peneplain, penetrable, penetralia, penetrance, penetrant, penetrate, penetrating, penetration, penetration aid
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use penetrance in a sentence
This has to do with the way penetrance is calculated, he says.
“These measures of penetrance are likely artificially high,” says University of Cardiff medical geneticist David Cooper.
If scientists identify 100 individuals with the same mutation, and 75 of them have disease, the penetrance is 75 percent.
British Dictionary definitions for penetrance
penetrance
/ (ˈpɛnɪtrəns) /
noun
genetics the percentage frequency with which a gene exhibits its effect
Word Origin for penetrance
C20: from penetr (ant) + -ance, on the model of German penetranz
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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