Genetically modified "golden rice" has been engineered to meet human nutritional requirements. Which one of the following statements best qualifies as golden rice?
1
The grains have been fortified with genes to provide three times higher grain yield per acre than other high yielding varieties.
2
Its grains contain pro-vitamin A which upon ingestion is converted to vitamin A in the human body.
3
Its modified genes cause the synthesis of all the nine essential amino acids.
4
Its modified genes cause the fortification of its grains with vitamin D.