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.
Primer fills in spongelike pores and creates an even, solid base that takes paint well. You should also prime if you're going from a dark to a light color or vice versa. (In the latter case, have the paint store tint the primer to go with your wall color. It will save you at least one coat of paint later on.) Primer should also be sanded before the paint goes on the wall; for a top-notch job, sand between paint coats, too.