Rice and sticky rice are same trees and nature. Like everything else but different starch in seeds which are amylose &amylopectin starch , rice have about 15 to 30 percent of amylose but sticky rice has amylopectin is a majority and a minority amylose. Grain rice is amylose starch about 5-7 percent amylose starch, amylopectin making seeds sticky rice when cooked.