To what extent do you expect chemical use to correlate with GM crop acreage?

GM herbicide-tolerant crops enable farmers to use certain herbicides that will kill ... of pesticides may mean that we should still work to minimize exposure to ... Alternative, non-chemical forms of pest control that are less toxic

Explanation:

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.