Hello, my grand mother is 50% mixed white American and 50% Japanese (her father was a white american (tall, blue eyes, anglo-saxon and all of his parents, grand-parents etc... were like that, and Her mother was Japanese). When she was born she had blond hair and I guess blue eyes, now it's dark brown and her eyes are green/light grey. She had my father with a Taïwanese, and my father is tall like his American grandfather. My mother is 50% Irish and 50% Vietnamese.
Does the white American blood may influence my phenotype ?