The human growth hormone made by the transgenic pigs caused them to grow more quickly, and to a larger size and greater mass, than pigs that were not genetically modified. Suggest reasons for this difference.
Suggest and explain why the mouse DNA was added to the foreign DNA.
Discuss whether these transgenic pigs have long term economic value.
Comment on the ethics of producing transgenic pigs with the features described.
Describe two advantages of the gene-editing technique compared with the traditional genetic modification technique used to make transgenic pigs in 1985.
A scientist stated that this new technique is a form of selective breeding, so is not genetic engineering. Discuss whether this claim is correct and whether public groups who oppose transgenic animals will be more or less likely to accept the new technique.