(USA Today) Researchers have chopped, spliced and manipulated DNA to craft the first extensively modified “designer chromosome,” a genetic structure carefully engineered to spur scientific discovery.
The work is being hailed as a bioengineering feat and an important step toward producing a complex organism — in this case brewer’s yeast — with a custom-made synthetic genome, or genetic blueprint. The research paves the way for producing new medicines and even biofuels from life forms with artificial chromosomes.
Artificial chromosomes have been built before. But those were relatively faithful copies of natural chromosomes, the tiny thread-like structures made of tightly packed DNA that serve as the body’s blueprints. By contrast, the new chromosome is a product of purposeful tinkering, but the yeast that carry it act like normal yeast.
