The results were independently confirmed by in situ hybridization of the endogenous genes at selected stages (data not shown).

We next tested whether expression of endogenous Hh-responsive genes was stimulated by the agonist.

In 1981, the first example of alternative splicing in a transcript from a normal, endogenous gene was characterized.

As such, the endogenous gene was used as a DNA loading reference representing two copies.

Genes from a genetically modified organism may pass to another organism just like an endogenous gene.

The technique of gene targeting uses homologous recombination to target desired changes to a specific endogenous gene.

This includes modification of endogenous genes.

This method creates a transgenic mouse and is used to insert new genetic information into the mouse genome or to over-express endogenous genes.

This could result in different expression patterns or could affect the function of other endogenous genes within the host.

Both transcriptional and post-transcriptional gene silencing are used to regulate endogenous genes.