The transgenic plants, such as golden rice, are produced primarily with the help of:

Explanation

Transgenic plants such as golden rice are produced primarily with the help of Agrobacterium tumefaciens. Agrobacterium tumefaciens is a bacterium that causes crown gall disease in plants. It is also a natural genetic engineer, as it can transfer its own DNA into plant cells. This ability has been exploited to create transgenic plants, which are plants that have had their DNA modified to include genes from other organisms.