Their removal stopped two genes from operating.

VOA: special.2010.07.20

Two genes are responsible for Shh levels.

VOA: special.2009.12.22

In fact,Science magazine recognized the discovery of "genes for mental illness" as the number two "Breakthrough of the Year."

VOA: special.2009.06.24

The researchers say that about two thousand of tropicalis' genes are similar to human genes linked to cancer, asthma and heart disease.

VOA: special.2010.06.29

The Bovine Genome Sequencing Project found that the cow genome contains at least twenty-two thousand genes.

VOA: special.2009.05.05

Co-inventor Ingo Potrykus says rice with two added genes will be available in twenty-thirteen.

VOA: special.2011.03.01