
In molecular biology, housekeeping genes are typically constitutive genes that are required for the maintenance of basic cellular function, and are expressed in all cells of an organism under normal and patho-physiological conditions. Although some housekeeping genes (such as GAPDH, HSP90, and β-actin) are expressed at relatively constant levels ...
Found on
http://en.wikipedia.org/wiki/Housekeeping_gene

<molecular biology> The genes which are expressed in all cells and which code for molecules that are necessary for basic maintenance and essential cellular functions. ... (09 Oct 1997) ...
Found on
http://www.encyclo.co.uk/local/20973

one that encodes a protein needed for basic cell function and so is expressed in all cells.
Found on
http://www.encyclo.co.uk/local/21001

Housekeeping gene: A gene involved in basic functions needed for the sustenance of the cell. Housekeeping genes are constitutively expressed (they are always turned ON).
Found on
http://www.medterms.com/script/main/art.asp?articlekey=24232
No exact match found.