Sugar beet (Beta vulgaris) plants have been genetically modified (GM) to express a gene conferring resistance to the broad-spectrum herbicide glyphosate.
A farmer can maximize the yield of sugar beet roots by:
Explain how the cultivation of GM sugar beet plants combined with glyphosate application can increase the yield of sugar stored in the beet roots.
Suggest two reasons why some consumer or environmental groups are concerned about the agricultural cultivation or consumption of GM sugar beet. Do not refer to ethical concerns or religion in your answer.