Have scientists successfully genetically designed a potato that resists the Colorado potato beetle?

The correct response to whether scientists have successfully genetically designed a potato that resists the Colorado potato beetle is "No." While researchers have conducted various studies and experiments aimed at developing genetically modified potatoes with resistance to this specific pest, as of the latest available data, there has not been a fully commercialized potato variety that successfully demonstrates this trait.

The Colorado potato beetle is a significant agricultural pest that can cause extensive damage to potato crops, prompting efforts to find sustainable solutions, including genetic engineering. Scientists have made progress in understanding the beetle's biology and developing potential resistance traits; however, these efforts have not culminated in a widely accepted or complete solution that is available to farmers.

The other options, such as "Currently in development" and "Research ongoing," might suggest that there are ongoing efforts or advancements in this area. While it is true that research is ongoing and scientists are exploring various methods for beetle resistance, the lack of a commercially viable genetically engineered potato that meets this criteria leads to the conclusion that, as of now, there is no completed effort that has been successful. Thus, stating "No" is accurate given the current status of scientific advancements.