Multiple choice

Which of the following genes is expressed at a constant rate, without being subjected to regulation?

  1. Gratuitous inducer gene

  2. Repressor gene

  3. Constitutive gene

  4. Oncogene

  5. Protooncogene
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Constitutive genes are expressed continuously at a constant rate without regulation - they're 'housekeeping' genes essential for basic cellular functions like metabolism, structure, and maintenance. Unlike regulated genes that respond to environmental signals, constitutive genes maintain baseline expression levels. Gratuitous inducer genes, repressor genes, and oncogenes are all subject to regulation.

Keep practicing — related questions