Actin,a protein found in almost all eukaryotic cells,is expressed in most cell types at a fairly constant level.Thus,the gene that codes for actin can be considered a(n)_______ gene.

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Since actin is expressed in most cell types at a fairly constant level, the gene that codes for it can be considered a constitutive gene. Constitutive genes are typically housekeeping genes that are necessary for the basic functions of a cell and are expressed at consistent levels. Inducible and repressible genes are regulated by environmental or internal signals, while activated genes refer to the process of turning on a gene that was previously inactive. Transcription factors are proteins that bind to DNA and regulate gene expression.

Actin,a Protein Found in Almost All Eukaryotic Cells,is Expressed in Most