Activation tagging is a T-DNA-based approach in. which a series of strong enhancers are positioned next to. the right- or left-hand T-DNA border. Insertion of the. vector near a gene causes up-regulation and dominant. gain-of-function mutations. Several attributes of activation. tagging make it an attractive tool for functional genomics. studies and leading to development of large collections. predominantly in Arabidopsis (Ichikawa et al.
Sep 25, 2015. 3. Mercedes-Benz is the latest German automaker to be accused of cheating on diesel emissions tests. Lobby group Deutsche Umwelthilfe (DUH) has said that it has tests showing vehicles made by German automakers, including those from Daimler and Mercedes-Benz, significantly exceeded limits on nitrogen oxide emissions.
The âdefeat deviceâ that Volkswagen used to cheat on US emissions testing sounds as if a secret little black box was hidden deep in the diesel engine just waiting to switch anti-pollution controls on during government inspections. The reality is more subtle. There is no physical device. Volkswagen defeated the Environmental Protection Agencyâs regime by programming the software that controls the engine, so that it runs with maximum anti-pollution controls only when tests are taking place.