Vanilla, saffron, patchouli. For centuries, spices and flavorings like these have come from exotic plants growing in remote places like the jungles of Mexico or the terraced hillsides of Madagascar. Some were highly prized along ancient trading routes like the Silk Road.
Now a powerful form of genetic engineering could revolutionize the production of some of the most sought-after flavors and fragrances. Rather than being extracted from plants, they are being made by genetically modified yeast or other micro-organisms cultured in huge industrial vats.
I am not sure how to answer
A. The different length and different sequence are a good indication they are front different genes and probably have different functions.
Is a proposition that has not been empirically proven yet, and that attempts to describe or justify a system or phenomenon.
