Final answer:
The gene product of flowering locus D (FLD) is a protein called FLOWERING LOCUS D (FD). FD is a transcription factor that regulates the expression of other genes involved in the flowering process. It interacts with another protein called CONSTANS (CO) to activate flowering-related genes.
Step-by-step explanation:
The gene product of flowering locus D (FLD) is a protein called FLOWERING LOCUS D (FD).
FD is a transcription factor that regulates the expression of other genes involved in the flowering process.
It interacts with another protein called CONSTANS (CO) to activate flowering-related genes.
When FD levels are high, it promotes flowering by turning on the expression of genes that initiate floral development.