The jun oncogene has proved to be an important genetic switch, turning certain genes on or off.

A "genetic switch" is added, which programs the gene to "turn on" only inside the mammary gland of its new female host during lactation.

The company then inserts a genetic "on" switch into that break that turns on a nearby gene and causes the production of the associated protein.

Some noncoding DNA sequences are genetic "switches" that regulate when and where genes are expressed.

They flipped a genetic switch in me and made me an intellectual athlete.

Scientists have already figured out how to give a fruit fly a photographic memory by manipulating a genetic switch called CREB.

Green Eyes Q. If the main genetic switch for eye color involves genes for brown and blue, how do green eyes arise?

The idea of a genetic switch that is geometric rather than chemical has a certain appeal.

With genetic engineering, however, researchers can assemble a package of genes and genetic switches that may enhance a cow's milk production, say, or improve its meat.

On the other, the positive environment had prevented the genetic switches.