If a gene is always expressed, it is:
A) constitutive
B) inducible
C) repressible
D) derepressible
E) promotable

Question

Quizplus · Accepted Answer

A gene that is always expressed at a constant level is referred to as constitutive. These genes are not regulated by environmental or cellular signals and are constantly producing their products. This is in contrast to inducible and repressible genes, which respond to various signals and conditions to regulate their expression levels.

If a Gene Is Always Expressed, It Is