A transgenic organism is. A. one that contains a gene from another organism of the same or different species. B. one produced by cloning a mutant cell. C. one that acts as the donor for DNA to be moved into another organism.D. one produced by the polymerase chain reaction.. one that contains a gene from another organism of the same or different species. B. one produced by cloning a mutant cell. C. one that acts as the donor for DNA to be moved into another organism. D. one produced by the polymerase chain reaction.
Priming and Mixing. Before you mix your epoxy coating, apply an adhesion primer or promoter to the countertop with a sponge roller. Epoxy coatings require this coating to ensure a durable finish, but you can also use a primer labeled for use on shiny surfaces like laminate. Once the countertop is primed and dry, mix the epoxy coating, which is typically packaged in two parts: resin and hardener. Mix these immediately prior to application.
Using a primer on surfaces made of plastic is only necessary when making a drastic change of color (going from dark brown to white, for example), because most household plastics are not very porous and are not easily damaged by moisture; or when a long-lasting coat of paint is desired.