Final answer:
The genes transferred to golden rice that allow for the production of beta-carotene were sourced from daffodil and a bacterium, aimed at combating vitamin A deficiency.
Step-by-step explanation:
The source of the genes transferred to golden rice to prompt the production of beta-carotene, a vitamin A precursor, were from daffodil (Narcissus pseudonarcissus) and a bacterium (Erwinia uredovora). These transgenes enable the rice to synthesize beta-carotene in the endosperm of its grains, which is the part that is retained after processing into white rice. The creation of golden rice is a significant biotechnological achievement as it is designed to combat vitamin A deficiency, which is a serious public health issue in many developing countries.