noun
expression
The production of a gene product or manifestation of a genetic trait.
This protein controls the expression of genes involved in growth.
Etymology
Expression ordinarily makes something latent manifest. Genetics applies that idea to the production of a gene’s product or the appearance of an inherited characteristic.
More examples
- Researchers measure gene expression by tracking RNA levels.
- Environmental conditions can affect the expression of inherited traits.
- The drug reduces expression of a gene linked to inflammation.
Forms
expression · expressions
express verb — Produce gene products or manifest genetic traits.
Similar words
- manifestation
- Emphasizes a trait's appearance rather than gene product production.
- transcription
- Specifically produces RNA from DNA, only one stage of expression.