Question

Because genetically modified seeds are , farmers cannot keep any of the seed themselves but must purchase seeds each year from companies such as Monsanto.

Answer 1

patented

Step-by-step explanation:

Genetically modified seeds are patented by the companies that develop them. Generally, genetically modified seeds cannot be used to produce more usable seeds, i.e. the seeds that you harvest cannot be used to grow more crops or only a small percentage are fertile. Besides that important issue, when farmers buy patented seeds, the seller makes them sign a written contract that prohibits them from trying to replant seeds.