What is another word for constitutive gene?
Pronunciation: [kˈɒnstɪtjˌuːtɪv d͡ʒˈiːn] (IPA) 
A constitutive gene is a gene that is always expressed at a constant level, regardless of the cell's environment or developmental stage. Synonyms for the term include housekeeping gene, basal gene, and essential gene. Housekeeping genes are required for the basic functions of the cell, such as energy production, DNA replication, and maintaining the cell's structure. Basal genes are also necessary for maintaining cellular homeostasis and are frequently used as reference points for gene expression studies. Essential genes are critical for the survival of the organism and are often involved in fundamental cellular processes, such as cell division and DNA repair. Overall, any of these terms can be used interchangeably to refer to genes that are always expressed in a cell.
