You have an understanding of inheritance that's below high school level. The dad could be a carrier, with red haired ancestors, he could have a red hair genotype that passed to his daughter.
Here's another option: The man is not the biological father of the girl, but is nonetheless her father. Stepdads exist and they can be awesome. If he loves the mom and he loves the girl (as his daughter), and he's good to both of them, what else can you call him but her father?
AntiPostmodernist 0 points 7 months ago
You have an understanding of inheritance that's below high school level. The dad could be a carrier, with red haired ancestors, he could have a red hair genotype that passed to his daughter.
Here's another option: The man is not the biological father of the girl, but is nonetheless her father. Stepdads exist and they can be awesome. If he loves the mom and he loves the girl (as his daughter), and he's good to both of them, what else can you call him but her father?