August 24, 2004
Genetics: Marathon Mouse!
From Wired News:
"Marathon mice," genetically engineered by Howard Hughes Medical Institute researchers, can run twice as far as their unaltered buddies. Previously, the only known way to increase endurance was through training.
… To perform the genetic enhancement on the mice, researchers injected a human version of a protein called PPAR-delta attached to a short DNA sequence. The injection permanently incorporated enhanced PPAR-delta production into the mice' genomes. The change is transgenic, meaning the mice will pass down the trait to future generations.
To explore how traits can be passed to future mice generations, please check out our Gizmo on this topic: Mouse Genetics.
In the Mouse Genetics Gizmo, you can try the similar types of experiments as those used by the researchers at the Howard Hughes Medical Institute to study the principles of dominant and recessive genes.
Posted by ExploreLearning at 09:01 AM | Permalink