Currently almost half of the produce harvested in the united states is ruined by spoilage! if the flavr savr gene was used to reduce spoilage, how might the grocers ripen the fruit in a controlled manner once it reaches the store?

Vine with enthylene is used for ripening

Explanation:

FLAVR SAVR gene reduces spoilage in order to commercialize a crop so that it is easily transported and marketed.  

Such engineered crops fruits are ripened through external means. Unlike the old practice of using ethylene for ripening crops, these GMO fruits are ripened by using vine along with ethylene. Usage of only ethylene prevents the ripening of fruits from inside while ethylene along with vine ripens the fruit completely thereby preserving its freshness, flavor and also reduces spoilage.  

not sure if this is what you'r looking for nnew= nold

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.