During contraction, the myosin molecule forms a chemical bond with an actin molecule on the thin filament (gripping the rope). This chemical bond is the crossbridge. For clarity, only one cross-bridge is shown in the figure above (focusing on one arm).
Plant patents are issued for new varieties of asexually reproduced plants. A plant patent may be granted to anyone who invents or discovers and asexually reproduces any distinct and new variety of plant.Plant Patents are issued for 20 years.lant patents are issued for new varieties of asexually reproduced plants. A plant patent may be granted to anyone who invents or discovers and asexually reproduces any distinct and new variety of plant. Plant Patents are issued for 20 years.
Plant patents are for man-made plant varieties. Utility patents are granted for entirely novel devices or items, improvements to existing devices and for new uses of a known device, product or chemical compound. It is therefore possible to patent something that already exists if you can find a new use for it. It is common, for instance, for pharmaceutical companies to be granted patents when they discover a new use for an existing drug.