Biology 9700 · AS & A Level · Genetically modified organisms in agriculture
Genetically modified organisms in agriculture — practice question
LibertyLink® soybean is a genetically modified crop. It was first cultivated in 1996 and has been used in food products since 1998. It has been grown in 6 countries and has been used in food products in 21 countries.
Table 8.1 gives a summary of the modifications made to the soybean plant to create LibertyLink® soybean.
(a)[4]
Explain how the modification made to produce LibertyLink® soybean could help to meet the global demand for food.
(b(i))[1]
Name the type of enzyme that could be used to remove the pat gene from S. viridochromogenes.
(b(ii))[1]
Name the enzyme that could be used to attach the pat gene to a plasmid by creating phosphodiester bonds.
(c)[3]
Suggest reasons why LibertyLink® soybean is used in food products in 21 countries but is grown in only 6 countries.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “LibertyLink soybean is resistant to / not harmed by glufosinate herbicide” …