Final answer:
The expression of HERC2 and OCA2 genes are required for blue eyes.
Step-by-step explanation:
True. The expression of HERC2 and OCA2 genes are required for blue eyes. The HERC2 gene controls the expression of the OCA2 gene, which is responsible for producing the protein that determines eye color. When both genes are functioning properly, they lead to the production of melanin, which results in the formation of blue eyes.