Q. Genetically modified" golden rice " has been engineered to meet human nutritional requirements. Which one of the following statements best qualifies 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