(a)[3]
Calculate the percentage rise in the mass of GM maize grown from 2000 to 2015. Give your answer to two significant figures.
(b(i))[1]
Genes are located at particular sites on a biological molecule. State the name of this biological molecule.
(b(ii))[2]
Scientists who create GM crop plants breed them for many generations before farmers are allowed to grow the crop plants. Suggest why scientists breed the GM crop plants for many generations.
(b(iii))[6]
Human proteins may also be produced with bacteria that have been genetically modified. Describe how a gene can be moved from one organism to another using genetic modification.
(c(i))[1]
Suggest how pollination between GM crops and wild plants could be prevented.
(c(ii))[2]
State two advantages of GM crops other than insect resistance.