expression

As nouns the difference between expression and underexpression

is that expression is a particular way of phrasing an idea while underexpression is insufficient or abnormally low expression.

As nouns the difference between expression and riboregulator

is that expression is a particular way of phrasing an idea while riboregulator is (biology|genetics) an rna that regulates expression of itself or another nucleic acid in response to a signaling event.

As nouns the difference between expression and misexpression

is that expression is a particular way of phrasing an idea while misexpression is incorrect expression, especially of a gene.