The way they do this is clever: since female chickens are ZW and males ZZ (in birds ,the heterogametic sex is female), they gene-edited the Z chromosome in a way that if blue light is shown on the embryo, it aborts. You then cross a ZZ male that has no modified Zs with a WZ*...
Others smoke when they feel bored. Smoking produces a feeling of satisfaction that's difficult to give up. Finally, people who smoke are usually in denial – they know that smoking is bad, but they convince themselves it's simply "not as terrible as they make it sound." Smoking is a ...
Why do batteries seem to go dead and then come back to life if you let them rest? What are all the different ways to store energy besides using rechargeable batteries? More Great Links BBC: How Do Batteries Work? The Official Lemon-Power Website (It's about using lemons to power stuff...
This might lead to a problem which some people may call a version of Gresham's Law: Most traded cars will be "lemons" and good cars may not be traded at all. The original version is "Bad money drives out good money". Bad cars drive out good cars because both of them are sold at ...