Spatial Data Objects. The geometry and geography data types support sixteen spatial data objects, or instance types. However, only eleven of these instance types are instantiable; you can create and work with these instances (or instantiate them) in a database.
Rewiring the grain. Metabolic engineering. Golden Rice technology is based on the simple principle that rice plants possess the whole machinery to synthesise Î²-carotene, and while this machinery is fully active in leaves, parts of it are turned off in the grain.
Even after scientists created the proof-of-concept Golden Rice, m uch tweaking and additional research was needed. The beta-carotene-rich rice needed to be traditionally bred to work with favored local rice varieties, a process that is time-consuming and complicated.