Gene S controls the sharpness of spines in a type of cactus. Cactuses with the dominant allele, S, have sharp?

sharp spines, whereas zygous recessive ss cactuses have dull spines. At the same time, a second gene, N, determines whether cactuses have spines. zygous recessive nn cactuses have no spines at all. A cross between a true-breeding sharp-spined cactus and a spineless cactus would produce?