Question

The genes that are continuously expressed in the body are called _______________

• A. regulated genes
• B. housekeeping genes
• C. luxury genes
• D. non constitutive genes

Answer 1

The correct option is B housekeeping genes

Genes are the hereditary units that have the code for the products (proteins) required by the organism. These are of two types: housekeeping genes and regulated genes.
Housekeeping genes are also known as constitutive or maintenance genes, the products of these genes are constantly required by the body for the basic functions.
Genes that are expressed occasionally or sometimes are called luxury genes or non constitutive genes. The expression of these genes is regulated or controlled by metabolic, physiological and environmental conditions.